50x leverage Long on Bitmex, you'l be rich if ETF gets approved.
Just kidding, probably the best thing to do is to hold long term. (if you believe BTC has a future, if not you probably wouldn't have bought it.)
Where did u hear about the 50x leverage?
This is an example of why you don't ask that kind of questions online, because you will receive unproven answers in which will depend if you will earn or lose your money (It is more of losing it really). If I were you I will personally study everything before even getting suggestions online you will end up investing something under a referral of someone for their HYIP site. Education is really the key of being rich in this cryptoworld.