<human>: Can you succinctly summarize the text in 1-3 sentences?

So I(m26) just broke up with my SO(f20) after being together for a year. When I met her she was just some 19 year old chick who I thought was hot looking and I didn't really have any desire to spark up a relationship, but after hanging out with her for about two weeks I couldn't help but realize what a cool chick she was and then I was hooked. Sadly, I am 26 years old and couldn't help but think that all I would be doing to her was holding her back from experiencing all the fun things you do when you're that age. Granted I was not perfect for the year we dated and I know I could have been better, but I always felt like she was gonna wisen up sooner or later and I would be the one who got hurt. 

I guess I just need to let it out and talk about it. Cause right now the demons of regret are hitting me hard. Especially in the morning time cause she used to kiss me goodbye every morning before I left for work. :/
<bot>: Pretty much just want some advice on how to deal. Seems like every time I break up with a chick I feel as though I may have made a mistake.