Converting all the coins into one single coin is not good even if there is an element of profit for there is always a huge risk in doing so. This is an open secret that if you try to put all your assets in the same basket, you might be prone to loss. On the other hand, if you keep some of your altcoin and convert the rest in Bitcoin, that can make a sense because not all the altcoin are so impotent not to give back the money you expect. Give it some time.