I need help guys

I'm in mid 30's. When I was 15 I was arrested for touching girls, they were about 12-14 at the time. I did follow gilrs on few occasions into pleace where I could touch them (specially when they were wearing skirts) put my hands under the skirt, touch for few seconds and then run. I used to do it in the city where I grew up and 2 of them recognised me and reported it to the police. I was punished for this but I did carry on doing so. Than when I Was older maybe 19-20 I started going to ladies toilets (usually at university) and watching them over the edge, I was masturbating at the same time. Sometimes I was looking for pretty girl at the train station, when the train was quite empty I was sitting few rows away so I could see her and masturbating. I done all this thinks many times, wouldn't been able to tell how many. I was masturbating a lot, now even I'm married I have to do it at least Twice a day, I can do it now and than 2 hours later have sex with my wife. We had fantastic sex for first few years we used to do it 3 times a day, this days are well gone now. I was trying to get her back into that but she doesn't want, now we are having sex few times per week if lucky. So I have to do it myself, otherwise I would die. Few years ago I have discovered I can look under girls shirts without them notice it simply by recording them in public places so later I can watch and do it myself. I know I can find it on the internet but recording done myself are a lot better, I'm getting horny while doing so, scared and horny. I know there is something wrong with my head, don't know why, can't recall any sexual abuse when I was child. Where can I go for help in the UK does anyone know? I don't want get myself into any trouble by telling this to someone but I know I need help before I do something bad to someone else. Is there any medicine that would help me? Hope someone can give me advice. Thank you

I would strongly advice you to get in contact with 'Stop It Now' as soon as possible:
http://www.stopitnow.org.uk/

You and I both know this cannot continue. At the very least, if you cannot think of the violation of these women's privacy, please think of your wife. It is important that you stop. I think posting here was a good first step. Good luck.