These markets are highly volatile so better take profit and make your way out. There are very good ERC-20 tokens to pour your profit into if you will have time to do so. People are ignoring hard and inevitable part of correction which is reaching fast. Take profit while you can else wait for next pump.
I am not sure about ERC-20 but investing 7k in one coin, is it really wise ? Maybe yes if you have 70k available cash to invest but otherwise I don't think so and I believe the price also is too high. Soon new apps will allow us to convert other cryptos and buy from any point in the local currency regardless of the coin you have uploaded. We have bunch of great projects much better and faster than BTC. Putting all the eggs in one basket was never seen by pro-investors as a good plan. It's good to have a bit of BTC but we have to diversify. This case is for me an evidence that only diversified portfolios can help avoid bad surprises. There is nothing for me that stops BTC to go from 7k to 100$. BTC is not a company . The big players can decide toghether to switch to another coin(s) and the smalls holders will see how dangerous can be to stick to one basket !!!
***This is Not a financial advice , it's up to you but - Diversify, that's all I can say guys.