I need help plz, or advices on what shoudl i do next, so confused?

It seems like you're coming on too strong... maybe she's not ready for a relationship? Maybe she's just not attracted to you in that way? I know you said her parents were cousins, but maybe she personally doesn't feel the same about the issue as them or you? Perhaps that's what's holding her back. whatever the reason, she doesn't want a relationship right now. I can understand your willingness to do whatever it takes, and maybe some time in the future she can look back and admire that. But, maybe the only thing it needs right now is time. I know it might be hard, just being friends while you want more. But it's better than not being anything at all, right? And if you push too hard, that's what might happen. So give it some time, and tone down the romantic gestures, even just for a little while.