@finnallen101 My most recent motto is "Strength is half bravery" (especially for beginners).
The other day was only my second time barbell squatting. Someone challenged me to do 135lbs (I'm 5'2" 115lbs). And guess what? I did it! Since then I've been busting through PRs by leaps (I hit a PR pretty much every workout, but lately I've been hitting them by much larger margins). So much of it is mental. Just go crazy (without being too stupid)!
I use 1RM calculators for some things to estimate how much I can do. Then I do just under this weight and realize I can do even more! Rinse, repeat. Increase reps or weight wherever you can. I've hit bench, leg press, squat, deadlift, incline DB press, pullup, t-bar row, etc PRs like crazy lately because I beeelieeeve.
Practice failing a light weight and adjust the safeties accordingly. Don't worry! You can do it