Hi there and thanks for your question.

Masturbation is very natural and a normal way to enjoy your own body. It's safe, it can reduce stress and it's also a good way to learn about your body and what feels good for you and what doesn't.

There is no set number of times a day that people should masturbate. Some people masturbate often (several times a day), while other people masturbate only rarely or not at all. However often you masturbate is normal for you.

Very frequent masturbation does not really have any effects as such. Masturbation is really only a problem if it interferes with your life in a way you don't like and causes you distress.

Frequent masturbation doesn't have any physical effects unless the skin on your penis is getting sore. This can usually be prevented by using a lubricant.

Masturbation has not been shown to cause any of the problems you describe. I would suggest that you see your GP to talk about what you are experiencing. Acne and skin problems are common at your age but there is definitely treatment available. Your GP may prescribe antibiotics for your skin. If these don't work well enough, you might want to ask your GP for a referral to a dermatologist, as there are some very effective treatments for acne which can only be prescribed by a dermatologist.

Tiredness can have many causes, including stress, overwork, poor sleep, poor diet, low iron levels, illness etc. Again, the best thing to do is to talk to your GP about this.

You can also do a lot yourself, which will improve your overall health, such as:

• doing regular exercise
• not smoking
• drinking alcohol only in moderation
• having a healthy, balanced diet with plenty of fresh fruit and veg, low in fat and sugar
  
• avoiding carbonated (fizzy) drinks and energy drinks—they are bad for skin and tiredness
• mgetting enough sleep
• keeping your stress down (which all of the above will help with).