Best advice: don't listen blindly to anyone. If it does sound too good to be true, it usually is. Traders are a special breed. To succeed as a trader, you must have an oversight that is better than the market. To be a good investor on the other hand is easier. Patience is usually the key and follow rational choices instead of following the herd.

Find cases that are good. Steem is such a case with the growth we've seen. It might be the only thing you need. It is also a risk to fall for one particular case, so spreading the bets is key to a good nights sleep.