Bitcoin is still about 6x from where it stood exactly 12 months ago, no? Tell me any other business/market/investment where one could make 6x of their money doing nothing but just holding the coins? This is how markets do, they do not go up in a straight line, we are going to 50k, with or without your money in the game! So I would not sell if i were you, but as they say, dyor and make your own decision.