what would've been the better route?

i have this one girl i really like, i dont if its love or not but it probably is. i dont know if i should confess my feelings or not because i have a bad feeling it may affect our friendship because we've been friends for about 4 years. i also think it may get awkward between us if i did. i am very sure that theres no way she'd see me romantically because of one time she called our friendship platonic, i know platonic relationships exist but i just dont know what to do