How to invest into crypto?

I have done investing on various online investment but non of them will stay. if you ever heard ethrade, ethworld, laser.online, aurum bank, i already invest there and lost a lot of bitcoin there. The best way to invest is by doing mining. My rig now still give me a total of 0.002btc a day. another way is to exchange the bitcoin. rightnow i am playing at cryptopia.co.nz.