Anxiety about not being able to commit

I (M25) have been dating this girl for a while, everything is going great between us and I have feelings for her, she is looking to commit to a relationship in the long run and I do see us sharing a future.

But.

I used to date this same girl also earlier this year, but had to let her know I was not able to commit, which eventually led to us not seeing each other.

Reason for my commitment anxiety then was that it was only so long after a breakup from my previous relationship, which was caused by me being really lost in my life and not being able to sustain and commit to that relationship. So basically a loving relationship started to fell apart piece by piece through my anxiety and desire to be free (not to have sex/date with other women, but to be single and fully control my life, make my choices etc.). Eventually I ended up leaving her.

Now, the reason why I started seeing this current girl again is the fact that I realized I was thinking about this girl quite a lot, and still had strong feelings for her even after a couple months had passed by. Once we started seeing each other confirmed for me that I am madly attracted to her and want to be with her, but at the same time I am still having the same feelings of doubt and commitment issues.

Am I just a perfectionist and always thinking about a greener grass on the other side, I dont know. Even though I know that going into a relationship does not need to be rushed and I can take my time to date this girl, I still feel like there is a possibility I’ll end up wasting her time or hurting her feelings, just like had happened in my last relationship.