Knee pain for 5 years -- can't convince mom to take me to a doc.?

Ok quick summary. Pain for five years. Went to doc last year. Said it was runners knee, did intense physical therapy, anti inflamm salve , and electric stim. Didn't feel any better. Went to ortho who gave me a stretch that hasn't helped. I twirl baton and lately my knees are worse but I can't convince my mom to take me to another doc and idk y? It's really upsetting me cuz I just wanna be pain free! Plz help me! (and I've tried other stretches that also don't work!