You need to sell your bitcoins now. This is because the btc is about to correct its price.
Dont wait for 8000 usd price btc will not reach that price yet.
After price correction, buy btc again.
BTC Price at coinmarketcap = 7,126.02 USD / BTC
I think you made a little mistake with your advice because price is just go above 7700$ and this is pretty close to 8000$.Since we have a week more or less before next fork, 300$ to the next level of 8k$ is very close.The price seems to have not reached the upper limit yet and if you sell these days and not have chance to buy back at lower price you'll lose the opportunity for free coins after fork.In general it is not a good time to sell,it is better to hold and wait for the outcome of hard fork.