See my thread in lending. ~30% per week, but without transfer expenses.
You can not do by yourself, needs know how. If wanna invest directly by yourself, will be difficult, can be good cloud mining - get back investment in one year or so. About mining profit - nowadays hard to say, due to BTC mining difficulty. Some time ago BTC cloud mining profit was 100%. There is also some BTC wallets, which offer around 4% per year savings, but it is very small, you may be not interested.