Those thoughts where you feel like you got picked up too early

Hey everyone

Long story short I met my boyfriend when I just finished high school (18) through tinder and at the time I thought having a boyfriend/connection was cool etc. I’ve been and still with my loving boyfriend for almost 5 years (23 now) and we’ve been through a lot of shit together and definitely have grown/glowed together. But kinda lately a thought/memory pops into my head, I remember being in early high school and my aunty told me that she kinda regrets getting married/“tied down” really young and she had to give up/sacrifice a lot of things of herself for the future and family but of course she’s blessed to have the family + kids. She told me that it’s important to be young and experience life, now this thought/memory has been popping into my mind quite often lately....like the last year? I ask myself who or what would I have been like/what would I be like now if I didn’t get into a relationship so early? How my experiences wouldnt be with my boyfriend for almost every experience (first kiss, first sex, first serious relationship, first fight, first almost everything) and he’s very loving and understanding for me, my family and my background/culture and he knows that my life is very different or per say “very restrictive” compared to others but I’m always blessed to live my life as it is (I’m korean and he’s Australian.) and when I asked what would have happen if we took a break? He felt “scared” and unsure, and I feel like in a way I would be soiled or be ruined goods if I wanted to experience someone/something/relationship/friendship that’s different from him or etc

Should I stop try to stop these thoughts seeping into my mind? Should I feel like a bitch for having them? Should I okay for having them? Am I unfaithful, greedy and selfish? Because it definitely feels like that...

I’m just confused and in a way wanting to know and experience life? Like I don’t know

Sorry for the long text and thanks for letting me ramble on