sounds like either too much masturbation or too much porn
Remember your major sex organ is in between your ears
Its proberly a mild ED, so go with out it for a couple of months, buy a pair of boxing gloves for bed times or any other time your sitting around, that should stop you masterbating.
Also start doing some PCs each day, this is the muscle that controls you **** and pumps blood into your penis, try doing this in sets 20 x 3 at first then work it up as it gets stronger, see how this works before going to any drugs or hormons.
Good luck.
If you are under 40, and not on specific medications and don't have a serious medical condition, the causes of your copulatory ED are almost certainly anxiety or porn—or a combination of the two. Here's a simple comparison test to check for porn-induced ED:
1. Masturbate to your favorite porn.
2. Try to masturbate using no porn and no fantasy - only sensations. Masturbate with same speed and pressure as you would during intercourse.
Compare one and two. How erect was your penis? How long did it take you to reach orgasm? What was your level of excitement? A healthy young man should have no trouble attaining a full erection and masturbating to orgasm without porn or fantasy.
1. If you have a strong erection on #1, but problems on #2, then you have porn-induced ED.
2. If #2 is strong and solid, but you have trouble with a real partner, then you have anxiety induced ED
3. If you have problems during both 1 & 2, you may have severe porn-induced ED, or an organic problem. When in doubt, see a good urologist.
The following 2 links are to Medhelp threads on porn-induced ED. Read the stories. If you want to know more locate my first 2 posts on the link #1
http://www.medhelp.org/posts/Mens-Health/22-with-porn-inducederectiledysfunction/show/469209?page=1
http://www.medhelp.org/posts/Mens-Health/Too-much-porn-masturbation-causeED/show/183203
On GOOGLE VIDEO find “Erectile Dysfunction And Porn” - watch the video series.
Here’s a Psychology Today article on it
Porn-Induced Sexual Dysfunction Is A Growing Problem
http://www.psychologytoday.com/blog/cupids-poisoned-arrow/201107/porn-induced-sexual-dysfunction-is-growing-problem