the finest strategy I've learnt from my experience is do not invest all your money. always keep a specific amount (from 50% to 70%) with you. always start with a lower amount to invest. specially in online business, you must go with lowest amount you can. it will reduce your lost in case the investment failed.
That's a good strategy, never put all your money in one basket so you will not regret in the end.
Always think that whatever investment you will make, it is all about taking risk.
I agree with you - you can not invest all the money in one object.
From my experience, I can say that you do not need to invest in high-interest projects. Very often these are scammers. Such projects do not last long.