My graphics card won't fit into my motherboard

So this is my first time building a PC, and I'm having a lot of trouble 😭. Luckily I managed to fix most problems but my PC still gives the "no signal" error on monitor. I checked my PC again and noticed that my gpu isn't all the way in, I can't push it further even with being firm, and I'm scared I will break it if I try even harder.

What do I do?

GPU: GTX 1660 super Motherboard: ASRock B760M PG Sonic WiFi