I think the most important piece of advice I could give anybody who wants to invest is to take it slow and research the coins. Check the history of the coin's price, what the project is, what makes the coin special. STEEM Is a great example of a coin that offers real benefits that others cannot touch, and there are plenty more. If you're just getting started in cryptos, then research on the coins you choose is your best friend. Another great idea is to practice with a dummy portfolio making buys and sells "on paper" and see how you do. You will learn a lot in just a few months and then you can minimize your chance of losing money when you start using real cash. No need to hurry.