What should i do? Please help?

Just be confident. Confidence goes a long way. Just don't be over confident to the point that it sounds like you're being cocky cause it will probably turn her off. Nobody likes rejection but over analyzing yourself that way won't help you. You say she could be with any other guy but the fact that she's been texting you constantly on a daily basis should tell you that she's interested in you. Don't think about "other guys" just be you and see where it goes. hope this helps!