NHS + Hormones

Can anybody tell me please how to get Testosterone off the NHS?

I am almost 20 & have had blood tests, each time being told by different docters I do have low Testosterone levels/below average for my age (the first being when 17).

They wont give me treatment 4 it, despite admitting I probably would benefit from it, incase it affects my prostate. I have said this usually only occurs in older men though. I feel they are almost fobbing me off (as I think I would be taken more seriously if I was older).

I really, really do feel I need it. I have most the symptoms associated with low testosterone i.e very bad sleeping problems, constant feeling of fatigue, no sex drive, lost muscle.