What do i do when texting a cute girl?

ive been texting this girl for like 4 days and its going great but just that i sometimes send like 2 or 3 or 4 texts in a row sometimes and she just stopped texting me is there a way to fix it (also were suppose to hang out on thursday) so what do i do? when do i text her and how do i talk to her?i know she wont text me first