In case this can be helpful to somebody else, I spent my ~twenties ignorant of what attachment styles were, while definitely exhibiting some very, very obvious attachment patterns. And I made a lot of mistakes, and made a lot of people close to me sad.
Reading the "Attached" book was a huge wake-up call. According to the questionnaire, for what it's worth, I was exhibiting ~100% avoidant behavior.
This led to therapy, and to a lot of atonement, and growth.
I just came here to say - if you have a minute, give it a read. And for fun, try the questionnaire:
https://archive.org/details/AttachementTheory/page/n37/mode/...
Best of luck