I have suffered with depression and anxiety since age 11, what iif anything could help me as it causes me problems with my daily living and has done for years now?

See a psychiatrist: You could benefit from a good evaluation of your difficulties with a psychiatrist -- 30+ years of suffering is way too long. Several conditions may present with depression and anxiety, and a better understanding of your issues will allow for an effective treatment plan. There are medications which can help, along with psychotherapy -- but the most important thing is to first understand you.

Dep./anxiety: A therapist experienced in cognitive behavior therapy and a psychiatrist to manage medications as indicated.

Proper diagnoses: Often depression that occur at young age can be bad. Sometimes it may take 10 years to make the wright diagnoses and give the wright treatment( mood stabilizer) instead of just antidepressant which can make the patient more depressed and rapid cycler