If masturbation is not harmful, why I get side...

medical opinion about masturbation :
masturbation is a helpful tool to male and female sexual health , and its recommanded especially for young adults to practice it around twice aweek , but its also could be harmful if you are practicing it excissivly 
possible side effects of excessive masturbation :
1. change sexual drive 
2. immature ejaculation 
3. changes in sex stimulation pathways due to masturbations habits 
4. could do physical weakness if been used excissivly on long term 
How to recover from masturbation effects ?
1. as medical recommandation , try to slow down your masturbation habit to 2-3 times aweek at most , and you can do it gradually 
2. avoid any sexual stimulation causes such as porn or games or any other causes  to help you to control this habit 
3. have an extra half meal , and try to make it healthy , as 1 times masturbation waste around half meal calories from your body 
4. avoid smoking 
5. exercise regularly 
6. have a healthy diet 
general advices about excessive masturbation :
1. as medical recommandation , try to slow down your masturbation habit to 2-3 times aweek at most , and you can do it gradually 
2. avoid any sexual stimulation causes such as porn or games or any other causes  to help you to control this habit 
3. read more about sexual health , try to learn about your sexual abilities and needs 
4. distract your self by finding other habits such as sports or reading or anything you are into , and avoid wasting free time .