When I open the game it stays on the mojang screen and does not respond.

Let me put you in context, for several weeks minecraft stays on the mojang screen loading and does not respond, I usually play 1.8 and it stays on the mojang screen, but in the other versions it does not open, the truth is that I don't know what to do anymore, at first I tried opening the minecraft installer and giving "repair", which worked during that day, but the same thing happened the next, and I decided to reinstall it, but still it did not work. Also if I left-click on minecraft, the "Minecraft does not respond" window pops up and if I close this application, crashea. I had to put version 1.15.2 because it doesn't let me choose 1.8