Consider Bitcoin as the base layer coin for the market as many of the exchanges price their altcoins against Bitcoin. Also, Bitcoin is often used as your base currency to get started with an exchange. What I mean by this is you will not be able to buy with your regular credit card, you will need to transfer in your Bitcoin and use that as the currency to purchase.
One of the best resources for finding out about current or upcoming ICOs is here. If you see a coin that peaks your interest, be sure to be extra diligent when evaluating it. Since we have no historical data to gauge how the coin might perform, it’s very important to understand the real-world purpose of the coin. Another thing to note is whether the ICO is capped or not. Some ICO’s will be capped at a certain number, meaning that people who are late to the part, will need to wait for the coin to be offered on exchanges.
The second reason to buy the most liquid coins is that there are risks of scams. When you purchase Bitcoin you are sure that you will be able to sell it to somebody later. However, when you buy X coin, which is not as liquid and as popular as Bitcoin is, your risks are higher as everything depends in this case on the project, its team, goals, roadmap, background etc.
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.
The term “day trading” suggests manically executing on trades every few minutes. But, as many of these mistakes show, day trading success doesn’t necessarily come for finding a new potential trade every second: you might find more success simply by taking your time, finding opportunities you’re fairly confident in, and executing a couple of trades every day or two.
Don’t invest blindy. There are people in this world who would sell a blind person a pair of glasses if they could make money. Those same people play in the cryptocurrency markets and use every opportunity to exploit less-informed investors. They’ll tell you what to buy or claim certain coins will moon, just to increase the prices so they can exit. Due to the highly speculative nature of the cryptocurrency markets today, a good investor will always do his or her own research in order to take full responsibility for the potential investment outcome. Information coming from even the best investor is, at best, great information, but never a promise, so you can still get burned.