messages one day and then quiet

Who knows hers reasoning for why she started ignoring some of your texts. Definitely early days and based on her recent reaction to your messages I would definitely back off and wait 4-5 days before messaging her again. Who know if this will lead anywhere and as she's already seeming to back-off, no matter that she originally took the lead, if you wait and don't push it she might be more receptive or she, potentially, won't reply at all and you won't have gotten too emotionally involved. I can understand your confusion and probable frustration but don't get too attached to the idea of her just yet. Give it quite a few days and then text her. If she responds right away she is probably somewhat interested especially if she continues the texting dialogue - if she doesn't engage then just move on with your head held high.

She will get back to you when she’s finished messaging the other boys most likely.

Thank you but now i feel like a very bad person. I just found out she has depression and anxiety which why is she doesnt always reply in the same way. She talks only sometimes however whenever i message, she replies instantly.