Game freezes on Mojang loading screen and will not load

What I expected to happen was the game would load and I'd be able to play mc
Describe what you thought should happen here

What actually happened was...: The game froze on the loading screen and locked me in a frozen screen. only restarting my pc let me out of the screen.
Describe what happened here

Steps to Reproduce:
1. I dont know how I triggered this bug.
2. I did recently get a new pc
3. but I just signed in to my old account