My ankle started hurting about 2 months ago, slowly getting worse. but now my hip has also started hurting! worried it may be arthritis! ?

Doubtful: You're young for it to be arthritis. More likely in a younger pt would be sprain/strain or some type of joint problem (i.e. impingement in the hip). Conservative treatment with activity modifications, ice/heat, and NSAIDs would be reasonable. If symptoms persist and there continue to be multiple joints involved, you could consider seeing a rheumatologist to evaluate for arthritis.