Girl trouble :( help?

so ive asked this girl in person to go with me and freinds to fair she said yes and seemed enthusiastic about it ive known her for a year met her through a club but shes a senior and im a junior idk if it makes a difference i think it shouldnt if you have fun with each other.... and she said to text her when we wanted to go so... i texted her many times and she doesnt reply to me somtimes for days or just not at all and i dont want to be that guy that texts the girl a thousand times cause she doesnt reply... i dunno what to do should i keep trying to contact her or just forget about it even tho i feel kinda depressed and sad cause i wanted to have some fun with her and she said she did to but now it looks like its now gonna happen :/