Hi @aviceda and welcome to Ask Fedora!
Did you install proprietary NVidia driver and if you did – how did you do it (what how-to / guide did you use)? Providing model of your NVidia GPU can also help.
One other useful thing to know is if you can to switch to text console (tty) when boot finishes (if it actually does) using [Ctl-Alt-F3] (also F4-F6).
Also please check this post (and the whole thread), and maybe try the solution provided. Chances are pretty slim you have exactly the same issue, but screen flashing rings the bell:
P.S. you can add these parameters temporarely by editing grub’s menu (by pressing [e] in grub) – that’s a good way to try them without making permanent changes.