Probably excessive masturbating will not hurt you physically assuming you are already in good physical shape. But, you mentioned being "dizzy". That doesn't sound normal to me and it alone suggests that you get a good physical for peace of mind. And it could also make you very tired.
As far as masturbation goes, about 3 times a week is more normal...but there aren't any rules...so it is whats NORMAL for you. The big problem is if it gets in the way of things you should be doing like homework,dating,doing work around the house, even sleeping or eating right, going to the gym or social stuff most guys do at your age. But, remember that masturbation is known to be good for your prostate. Lock your door and remember cleanliness. My advice...take your time and make it last to be more satisfying. Quality versus quantity, but it won't hurt you if you use common sense. Masturbation using common sense is way better than picking up a social disease so why not? In todays world, it is the "safest" form of sex you can have.

Believe it or not, you are hurting yourself physically when you masturbate excessively.

It turns out that one ejaculation of semen can contain a full daily value of zinc. Several ejaculations in one day, can effectively cause you to become deficient in zinc, which can effect your skin, your eyes, your hair, and several other physical conditions and may indirectly contribute to your dizziness by either increasing or decreasing the levels of associated minerals.

I found a calculation of how often a man can masturbate without harming himself based, I believe on chinese or ayurvedic principles, but it isn't 'as often as he would like', and it is based on age. When I locate it again I will post it for you. For a young man like yourself, it can be quite frequent, but not as often as you do it. Moderation is the key. And even moderation is individual-based primarily considering diet and nutrition.

http://www.herballove.com/article.asp?art=373

Of course, some reports do note some of the benefits of masturbation, but again, it is a matter of moderation.

http://news.bbc.co.uk/2/hi/health/3072021.stm

You posted and used words such as worried, fear addicted, dizzy and disoriented. So you obviously have concern, address the concern.

If you did not have concern you would not post and would have no need to address a concern. At the least you would have said "Excess masturbation has made me completely healthy, given me extra life-force and vitality removed cancer, strengthened my prostate, etc...

Make a decision independent of people who want to read how many times you masturbate.

Masterbation is a completely natural act.

If we feel fear and guilt it is because of our upbringing.

Anything in excess can be dangeous. Yes you could damage your penis if you did it too much and too fast. It could cause damage to the membrains and tissue which are needed to absord the blood to have erections. You could "break it" if that is the best words.

The penis is a beautiful and sensitive organ. I needs tender care and loving attention both from your partner when you get one and from youself.

Slow gentle strokes can lead to the most incredible orgams. AND if you practise holding back the ejaclation you will esperience such fantastic multiple orgasms.

God gave you a penis with such fanastic sensitivity not just to pee out of but to enjoy.

If it feels good --- JUST DO IT.

Don't let it replace sexual intercourse though (let it me something you do as well as full inetrcourse) becasue when that is done with love and care IT TOO IS UNBELIEVABLY EXCITING and FULFILLING. AND emember, when you get a partner (male or female) they will enjoy you doing it to them as much as you will enjoy having it done to you.