>>5140168oh... I mis-read OP...
If *nobody* calls you cute then you're not presenting yourself nicely.
Get a decent haircut, buy some better clothes, lose some weight, work on your skin regime.
Ideally you should be shaving regularly, have your hair tiny and regularly maintained, fashion can be pretty simple (i'm assuming if you're aiming for 'cute' you're either a twink, girl, or tranny.) so just go for skinny jeans and a simple T shirt, maybe longline if you're feeling it, and some boots or sneakers or something.
If you're a twink, long hair on top, short on the back and sides, or just medium-long bangs hairstyles work.
Maybe shape your eyebrows or at least maintain them if they get messy around the edges. Makes a big difference.
Skincare is pretty easy. Experiment. Find a moisturiser that you like, exfoliate fairly regularly.
This is just basic 'how to be a teenager/young adult', OP...