You can lose profit sending trading and withdrawing if you are trading a small amount I have $50 worth of Ferum or FRM it will take $6 to send the whole amount to Bilaxy and after you trade it to Eth and wants to withdraw it you will have to spend $12 to withdraw your Eth,
now that's $18 gas fees for your $50, my only option is to trade it to other altcoins like DGB or Litecoin which offer $4 to $5 fee you still going to lose $11, that's over 20%.
ETH fees really really high right now, at the moment I'm avoid to transact with ETH and other ERC-20 tokens because it's high fees. A lot people already recommend you such token with fast and cheap transaction like TRON example if you are doing so much transaction. Just keep your token and sell to usdt when you feel right about it