What I suggest you is that you should store all those BTC if price will go lower than $3k in near future and you can exchange BTC which you have got last month into USD so that you will not loss anything in terms of fiat value.
Good luck, However I will never invest in any cloud mining packages.
The mining difficulty should go down after the hardfork as some people will split off and mine the new coin, if it happens. When Bitcoin Cash happened difficulty went down slightly.