What should I do

I (male) have been friends with this girl (female) for a year now and I really like her, but the problem is that idk if she likes me and if she rejects me, I’m worried imma get bullied in school (which has 100-115 kids for all grades) Plus there is a 2 year age and grade difference and we are younger so what should I do? Should I ask her out or not?