I advise you not to sell everything, if something worst happens, think of it as a lesson, so that in the future it does not happen again, so through that event you get experience and make no mistake when investing
In the very present situation when the market value of all the crypto coins is falling and that things are not going in the favor of the investors, it is better to hold everything which you have in your wallet instead of selling everything. If you will go for selling of the coins, then this will only result in loss of money and that you will only be left with the regret and nothing else.So, think wisely and dont make any such decision.
It is worst decision to sell everything to buy bitcoin. Crypto future is full of risks and you may lose all or some of your investment. Better to invest extra money in bitcoin if you have otherwise it is not sensible to sell everything for bitcoin investment. The future of investment is not guaranteed and there may be deficits in the price in the future.