One fact of trading that’s best to make peace with is that you’re never going to perfectly time your buys and sells. What are the chances you’re going to purchase at the exact bottom and sell at the exact top, coupled with putting enough capital into the trade to make a dent in your wealth. Trading is not cut in dry in the sense that there is only one set path to take. Every person has different goals in investing and trading, and cryptocurrency trading is similar in that regard.
At that point, you can begin trading. You can submit market or limit orders. The orders will be filled as soon as your buy/sell order can be matched to a corresponding one. Most exchanges only offer this limited structure for placing orders. However, a growing number of exchanges now allow more complex orders, including the option to go long/short on a stock and to employ leverage.
We’ve come a long ways in our path to becoming crypto traders, but there are still some very important things to learn. So far, we’ve learned how to do a fundamental analysis of a cryptocurrency, and that it’s important to do this so that we fully understand them before investing. But as traders, we need to understand what kinds of things tell us when should buy or sell. We need to understand technical analysis.
Binance are relatively new on the block but are poised to become the biggest digital asset exchange service available. Crucially, Binance are likely to eventually limit the number of users they take on, much like some of the other exchanges, so I recommend opening a Binance account today even if you don’t use it anytime soon – then you at least have the option.
UPDATE: I do not recommend paying to enter a Cryptocurrency mastermind group – I’ve tried a few and found the ROI to be disappointing. I am now focussing on growing my portfolio passively utilising a cryptocurrency trading bot, the renowned Notorious Bot. Having a bot that trades for me, without emotion, using an advanced algorithm, allows me to grow my portfolio in the background without it cutting into my time or stressing me out. You can familiarise yourself with the basics of cryptocurrency trading bots here. 
Ultimately, if you want to make money with crypto you have a couple of options. The easiest thing to do is to build a diversified portfolio of carefully selected coins and then to simply wait a couple of years. However, this is not the most effective way to make mad money. If you want to truly crush it at crypto, you need access to truly knowledgable people.
So-called “hot wallets” make accessing your crypto easy – allowing you to transfer funds and complete trades quickly and with ease. Many providers now offer mobile apps so this can be done on the move. Meanwhile, “cold wallets” are stored offline – commonly on USB sticks – with some people even writing down their private keys on paper. The latter can work well if you’re looking to save crypto for a rainy day.

Accept that coins can go to zero, and even good coins can lose up to 80% of their value (especially against BTC). There are many coins that didn’t make it to 2018 that were once highly valued and popular. Meanwhile, even some giants of today like ETH and XRP have seen their value in BTC prices drop to depressing levels. You should prepare for this mentally and have a strategy that factors this in. If you buy the dip in ETH from .15 down, .08 may look like an excellent price, but you have to be ready for .02. ETH holders who didn’t prepare for this had a depressing June 2017 – December 2017. Heed my warning, that new coin doesn’t have to moon twice, it can go to literal zero, and even those that will moon again… they can have long seasons of stagnation in between (where they lose value against BTC for months on end). See the Crypto Graveyard and please look at the historic charts of major alts like XRP (the gap between moons is real and some coins really don’t make it).

Don’t zoom in too much on the price trends of the moment; don’t sweat the small things. It’s easy to zoom in and get stressed when Litecoin goes from $220 to $213 (or something like that). However, these little movements only matter if you are day trading large amounts of coin relative to your total investable funds. Zoom out a bit and look at trends over larger periods of time. Don’t think of that $213 relative only to $220, think of it relative to the $100 Litecoin was at a few months back, the $400 it was at after that, and the $100 it was at just a little while ago. From that perspective, a fluctuation between $220 and $213 is nearly insignificant. I will rarely make trades on timeframes shorter than 2hr candles, and I generally am looking at 6 hr and 1 day candles, because I value my sanity and am focused on the long term trajectory of crypto. That only changes in very specific instances and with purpose. If you zoom in too much, you lose sight of overarching trends (many of which are actually stronger indicators of what is actually happening).
Don’t go downloading random wallets or clicking on random links, but do accept that you have to share information with exchanges. There is some malware out there, and you need to do research and be careful. However, for all you want to protect your privacy, you have to share your info with exchanges you want to use. So share what you have to and download apps as needed, but be careful and do research.

Always learn from your mistakes. Never accept a total loss. Always evaluate the situation and try to figure out why it happened. Take that experience as an asset for your next move, which will be better because you are know more now than you knew before. We all start off as amateurs, and we have all lost money throughout out trading experience. In his first month of trading, Miles went from $1,000 to $300. I’ve lost a lot by selling at losses inspired by fear. No one is perfect, no one wins every single trade. Don’t let the losses discourage you, because the reality is they’re making you better trader if you choose to learn from them.