My girlfriend says she likes me so much, but she just cant give it to me?

me and my girlfriend were friends for awhile and we started dating a few months ago. we make out alot and one time i rubed her through her pants and put my hand up her shirt and wen we wer done she started trembling i think from trying to move to the next level. an later on wen i went home i was texting her and she said she just cant go any further physically. but then she says quote “i just cant do it. i like you so much and i cant give you it. im just a baby” wat do i do? by the way we are both virgins and we are jumiors