Anyway, when I logged in to my old Bittrex account I realized that the wallet withdraw was available once again... but in the meantime the crypto had evolved from 1ST to DAWN. What is more, 1ST had swapped 1:1 to DAWN a few months ago and non swapped coins were put out of circulation. That is to say, my coins are not circulating and have no value.
I think you are partially responsible about this loss as you invest in projects that you are not ready to follow their updates. Exchanges are not supposed to inform you about the project updates (including blockchain swap).
It was mainly Bittrex fault because they frezzed the 1ST wallets back in 2017, when they stopped working with 1ST. That is why I had that balance, I couldnt cash out my money back then. However, you are right that I'm partly responsible for not being up to date with the project (I thought 1ST was going to die anyway). In any case, this responsability made me think about "The problem of the constant need of being up to date to HODL crypto" as I posted elsewhere
https://bitcointalk.org/index.php?topic=5369697.msg58373486#msg58373486Thank you for your thoughts!