Advice about Relationship, Pls Help!

Hey guys, so.. I’ve never been in a long relationship before like ever. This is my first longest relationship and the first guy I’ve ever really felt like that love love type of feeling. Where I actually want to be with this person for a long long time. Throughout the whole relationship, I always considered it good but I would always get mad about little things and specific stuff to the point where I felt like I ... pushed him away so much. He use to be so clingy and like so so in love with me; and I still believe he is ... just not like it use to be. But... we’ve had rough patches. During the summer, we got into a huge argument about him saving pictures of other girls.... in which made me feel

Insecure at the fact that he’s my bf and would so that... not only this , but.. I personally don’t believe my bf should text girls a lot or in general because I mean I’m his gf... he should be talking to me and his mom and family and guy friends, and anyways... he was texting a girl behind my back when me and him would get rough during our relationship, and she use to be really close with him... but throughout there whole convo he would flirt with her.. these may seem small but I’m not the type to let this stuff pass. He’s been a better individual; where he remains loyal and honest... but he’s not the same loving and clingy person and things changed a lot since the whole flirting with gal friend from past and just a lot of stuff. I won’t lie I broke up with him many dumb times out of spite and anger... and I regret it so much, and I have been trying not to get mad, but we both have anger issues in a way and I struggle from anxiety and ugh...

Lately idk how to feel about our relationship due to past problems and trying to fix things. I love this boy honestly, I may be 16 ( he’s 19 ) ( another issues; apparently I’m childish because of my arguments, even though he plays the same role) but I don’t want to lose this person even if I cry about him.. idk what to do? Should I be with him and try and fix things for the like 100th time? Or move on?.. thanks guys!