BTC is an investment itself, so putting money in is always good... Don't turn to burning massively, but the extent to try some is always worth it if gains continue.
Don't forget that the need to diversify is sufficient, so always reserve your fiat.
buy bitcoin, will give a good return on investment for you. but if you want to grow bitcoin you can begin to put your bitcoin in a variety of investments that will grow your bitcoin
There are various investment bitcoin, I think trading is the best. there is no fraud in trading, for starters I suggest to trading BTC-fiat currency because they are so strong that the risk faced will become smaller.