Harsh day! Low mood, depression, boredom, stress...

I have been in my house all day. I have a injury in my knee, so I can´t run or do a workout.... , for release some hormones. I can´t masturbate without several clicking pictures and without porn itself. It seems that I don´t have libido to masturbate or have sex with just one girl, I need several different girls from day to day, like if having sex with the same woman more than one time doesn´t excites me or gives me the same pleasure than the first time . I´m abstained from acting out behaviour, like watching porn while masturbating, going to prostitutes, masturbate to pictures on social media and masturbation in bathrooms while hearing woman voices for 1 month +, although 10 days ago I had a relapse because I masturbated one time, although it was with my own fantasy.
Today I have been in my house all day and I´m feeling bored, depressed and with a very low mood. I want to masturbate and today it seems possible to masturbate without porn or pictures, but I want to abstain from masturbation for some months until I see some recovery benefits, because even if I just masturbate with my own fantasy I feel that I release a lot of dopamine with the ejaculation. should I abstain from all types of PMO for some months and then progressively begin to practice a helthy sexuality after feeling that I do not have more compulsion?
For now I will do push-ups.