The Brave Browser won't work

I’m sorry if I haven’t done things correctly I’m new to this but I need help.

So one day I was searching through the internet with Brave Browser, but then the tabs won’t load. I thought that it would be fine if I let it load but 2 days later nothing is working, I tried resetting my laptop (macos) and I cannot restart it because I need to close the browser but I can’t force quit it. Please help me I tried a lot of ways to have this stopped but nothing works.

edit: so I’m trying to see if anything is changing (it is only a bit) but the tabs that I clicked on finally loaded (even after 2 days) but then it instantly closed.