First of all, it depends of your skill. Bitcoin mining is pretty competitive. And it’s not so easy and not cheap either. Maybe it’s better to start with some lesser Coin system (just to get some experience). If you have money, start to put your eggs in multiple baskets. I mean, you should try to invest in ICOs or trading. My first steps were taken here Mintos P2P . It’s always better to have different “baskets” just in case.