Minecraft stops launching most of the way through.

Every time I launch minecraft, it either stops launching most of the way through, or works, until it builds terrain. rn im going to focus on the main issue, minecraft not even starting. I have tried reinstalling, turning off and on my pc, and reinstalling java. here's the launcher log:

21:13:28.591
Preparing to launch minecraft client for 1.15.1
21:13:28.634
Prepared asset index
21:13:28.721
Have 2129 total files to check or download
21:13:28.726
Waiting for 2129 futures
21:13:58.339
Checking installations.
21:13:58.347
Minecraft client 1.15.1 is ready to start.
21:13:58.347
Starting!
21:13:58.347
Nothing to download!
21:13:58.347
Extracting 8 files!
21:14:00.263
Using default game log configuration client-1.12.xml (outputs XML)
21:14:00.263
Installing versions!

 

And then I have to forcefully crash it due to it just being frozen.