Honestly, I haven’t faced neither very good neither very bad experience with crypto. However, there was a couple of times when I had really good reasons to worry. Despite this, I can say that my strategy was quite simple right from the beginning: I simply decided to buy some coins on exchange and hodling 'em until now. Probably, the only trouble I had is the problem of choosing. It wasn’t easy for me to decide what exchange to choose. Tried several of them, but stopped at cex, as they offer btc/eur (https://cex.io/btc-eur) pairs, which is exactly what I need.