Do: Hold at whatever you're buying
Don't: Trade

Explanation: Everyone is losing money by trading because no one can predict the outcome of the market (short term outcome). But we can all be fairly sure that the cryptomarket will evolve within the next years and it's value will multiply by a lot. Considering that, it makes no sense to trade "catching waves" to make short-term profits, if you can simply buy any of these coins and hold, and make just as good of a return as you would by trying to trade. Just consider doing something else, having a job for example will most likely provide you with a better income than trading (even though trading is a job as well, leave it to the experienced one's) if you really do want to get invovled in it, just put a very small amount of your portfolio into trading, maybe 10% and trade with that. Something you can afford to lose.