How do i convince my gf we should go farther in our relationship?

okk me and my girlfriend have been dating for almost 3 months and i am ready to move past making out all the time... and like weve textd stuff but on V day i tried to feel her up and she stopped me... but we did make out on a wall with her pushing up against me... so like wtf? lol how or what should i do to help move this along... plzz dont be an *** hole when u answer