What do you do with tanks you can’t win with?

Einzelganger7: In my case it happens with the E-50, from the VK 30.02 M to the Panther II I have 50-53% win rate but the E-50 has misserable 45% win rate even if it performs decently. I have like 6 months I haven't used it but maybe I could try it again to see if it at least reaches 49% win rate because I actually enjoy it, but it is like a cursed tank for me.