Please Help !! - Running out of ideas

Hi All -

I'm 25 male and suffered from insomnia for 5-6 years (started when I was at uni drinking alot, started heavy weight training and my dad got ill).

Seen 6 UK GPs over that time that basically say that cannot do anything. Have pushed SSRIs on me as they say its anxiety. Tried setraline for 4-5 days and didnt sleep at all, read online that it CAUSES insomnia and literally found nobody who ever had a good eperience on that particular SSRI so binned it off.

Recently tried CBT which has been useless.

had bloods done for adrenaline fatigue, gp says all normal, finally got them to refer me to an endocronologist - but still waiting.

tried every vitaming under the sun (and valium).

3 x things worked initiall:

ZMA - Zinc Magnesium and B6 - does nothing now

5-HTP - Slept amazingly for 2 weeks - does nothing now

recently tried Phosphatyl serine - which is supposed to reduce cortisol (i have high cortisol levels - although self diagnosed) this worked 2 nights in a week but now does nothing. However its hard to gage dose and probably had too much as I can't measure 0.3 mg.

I'm at the deperate stage now - no sleep at all, went out last night but didnt drink and came in early. Exhaused and feel there is no help out there :(