1) Is masturbation considered Zina?

2) Does a masturbation addiction make marriage wajib?

3) What is the best way to break free from this addiction?

1) It is not considered to be zinna but it is a major sin and should be avoided.

2) If it cannot(be avoided) then it would seem necessary to get married.

3) Resisting it can be done through fasting and prayer, and always staying in the company of people