Yo help me...girl...age? what do i do?

aight so i been talkin to this girl for bout 2-3 weeks and i like her alot...shes everythin i been wantin on a girl...shes smart, cute, funny, spontaneous, just everything...thing is...im only 17...my birthday was on feb...shes 18 but shes turning 19 on july...that means shes older than me by a year and 7 months...what do i do? do i got for it? or let her go? i mean older girls bring less drama and know what they want thats why i like em like that...but what do i do? any girls datin guys younger than em? and guys datin girls older than em? if u are let me know how everythin is...thanks everyone...