I need help with my(m17) gf(f15) and this situation

I know not that original of a title, but I just need some help

So me and this girl have been talking for about a month and we became official two days ago but it’s been down hill from there (btw sorry for the bad grammar kinda in a rush)

So to start off Allie(random name) is a pretty insecure person she’s had some bfs in the past mess her up in a few ways emotionally and I was 100% okay with that I was ready to be her rock and her support but it’s kinda wore me out but it’s was okay until she got grounded for doing some idk what happened but she ground for a little while and that aye okay but she still insecure but now she thinks I’m going to leave her and it’s a good portion of what she talks about but the thing is I can only talk to her for about 30 mins a day after class and after school for a little bit before her bus get her but so we don’t get to talk about much else and she really scared of my friend Chloe(fake name) Stealing me or me dumping her for Chloe and it’s a talking point she likes to bring up and this is really killing me and emotionally it’s making me really stressed and stuff and it’s kill some emotions for her but it’s fine I’ll just truck along until she’s ungrounded but here’s the thing she going to be grounded for at least till the end of April and I I don’t know if I can do it anymore I hate the fact I’m not strong enough to push through this and be her bf like it’s killing me so we decide to go to one of her brothers baseball games to talk it out and we get there and the vide is off I’m not feeling that feeling you get around you gf okay it’s probably bc I just got off from being sick and stuff but we start talking about the problem and I’m really stressed out and to make matter worse her fam wants to meet me today so I’m mega stressed so we decided to go sit down and talk so we are talking about It and she’s getting a little emotional and putting the blame on herself but I’ll trying to tell her that it part my fault for not being strong enough but the relationship seems to not have that same feeling as it had and it feels like I’m walking on eggshells around her and then she say there’s that not problem at least she doesn’t see one and and she will work on the overthinking and the insecurities but the convo moves a little bit and idk what happened but she says or your just getting tired of me and in the worst twist of fate her brothers like we going to go and meet her fam so I’ll like shit we have to talk about it later and that’s probably not the best move but I’m really stressed out and having an anxiety attack and I don’t have my meds so it’s like bad but I’m trying to lock in and I think I was kinda pushing it off and she really trying to but I just can’t seem to get out the words then she screamed in my ear then you can fucking leave then and storms off and I chase after her and and please calm down and then we start talking but she’s rising her voice and it’s making me worse but her basically at the car so I’m like lock in plz probably not the best idea but we get to the car and she’s like if your leaving leave but if your not get in the car and I get in and lock in and talk to her mom and dad then they drop me off

Idk if this should even be on this sub but I just needed to get this off my chest and Ask what should I do in this situation I’m thinking about breaking it off but I feel so bad bc she not a bad person and I love her but I just can’t anymore or am I just being weak and immature and not being able to handle a ruff patch

I would really appreciate y’all’s help and advice I really need it honestly love yall and I’ll be explain anything else if needed and I hope I’m portraying both sides here I don’t want to make it look like I’m 100% a good guy

TL;DR my gf is insecure and i don’t know if I’m strong enough to help and stay in the relationship