If you are going long, consider building an average position (for example via dollar cost averaging or value averaging). There is no better way to avoid making a poorly timed trade than buying incrementally instead of all at once and thereby buying an asset at its “average” price over time. If you don’t have a really solid grasp of technical indicators and the way the volatile crypto markets work, consider averaging out of positions as well. Averaging isn’t just financially conservative, it is important psychologically. Taking too big of a position at once can be emotionally difficult to deal with (and can thus lead to bad decision making) given the historic volatility of the cryptocurrency market.
Bitcoin (BTC) is King/Queen; Don’t Get Overly Optimistic About Altcoins. Those who invest in BTC tend to get itchy fingers when BTC stagnates and alts go up. Sure, going into IOTA or ZCash can be a brilliant move at times… at other times you’ll be holding the bag while everyone moves back into BTC. Stick with coins you know and like, but consider always being partly in BTC (not 24/7, but in general). This advise applies somewhat to Ethereum as well, but first and foremost BTC is the center of the crypto economy.
If somehow, you’ve only heard of one cryptocurrency, it’s probably Bitcoin. It is the biggest cryptocurrency — it currently has a 40%i share in the total cryptocurrency market cap! It is the oldest cryptocurrency and it still dominates in the market. So, if Bitcoin continues to increase like it did in 2017, then investing in Bitcoin might be a good idea for 2018.

Founded in 2011, Kraken is the largest Bitcoin exchange in euro volume and liquidity and is a partner in the first cryptocurrency bank. Kraken lets you buy and sell bitcoins and trade between bitcoins and euros, US Dollars, Canadian Dollars, British Pounds and Japanese Yen. It’s also possible to trade digital currencies other than Bitcoin like Ethereum, Monero, Ethereum Classic, Augur REP tokens, ICONOMI, Zcash, Litecoin, Dogecoin, Ripple and Stellar/Lumens. For more experienced users, Kraken offers margin trading and a host of other trading features. Kraken is a great choice for more experienced traders. Check out the Kraken FAQ

The best cryptocurrency for long term investing is CAS Token because you get more than a coin; you get a cryptocoin that is backed up by an ongoing strategy to support the online marketplace and a cryptocoin that is a hub for every other currency. Cashaa is becoming the backbone of the online financial world and you can make a lot of money by investing now.
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.
Never put all your eggs in one basket. Diversify. While the potential to earn more is increased with the amount of money you invest into a coin, the potential to lose more is also magnified. Another way to think about it is to look at the cryptocurrency market as a whole; if you believe that this is just the beginning, then more than likely the entire market cap of cryptocurrencies will increase. What are the chances that this market cap increase will be entirely driven by one coin vs. being driven by many coins? The best way to safely capture the overall growth of cryptocurrency is to diversify and reap the benefits of growth from multiple coins. Also, fun fact — Between January 2016 and January 2018, Corgicoin has increased by 60,000x, and Verge has increased by 13,000x. During the same period, Bitcoin has increased by 34x. While you would have gotten impressive gains from Bitcoin, expanding into other coins could have landed you potentially larger ones.