I wouldn't invest 1 year of my salary in bitcoin mining right now (and even worst cloudmining, which is for sure less profitable than S7 mining).
You should be carefull. No one really knows what will happens with the bitcoin halving : BTC price could increase, but so will also the difficulty. and your miners could become obsolete really fast.
If you can't afford to lose the money you are going to invest, you perhaps have a better option just buying and keeping a few BTC. Their value "could" crash (we never know...) but the odds are low and it would be less risky.
Yeah For right now the op Should buy 1 coin.