Forexworld12: That sounds great! = ) It's good to see that you've got a plan here - these are some solid actions you are about to take. What I would recommend is not only cardio-training, but a little bit of resistance, muscle-building training as well - a few push-ups, a few sit-ups, and so on.
And it doesn't have to be much, just a topper on your other training - it will balance things out pretty well.
All right, let's have a look at Serotonin antagonists now...
I found some articles claiming that the serotonin 5-ht-1b -receptors are involved with addiction, and that there is some ideas that blocking them might be a good strategy while weening patients off various drugs.
https://www.scripps....9/parsons2.html
SO! Perhaps we'll look at blocking that receptor to start with, yeah? I also figure, you could do the blocking in a very... soft way. Use many different compounds, but only small amounts, and cycle them often.
Like, 4 days on this antagonist, then 4 days on a completely different antagonist. Basically, you exercise your serotonin-receptors, by blocking them slightly, a few receptors at a time - thereby the brain won't get used to having that perticular receptor permanently blocked - instead it will be trying to upregulate different receptors in intervals - 5-ht-1b here, then 5ht-2c here, etc.
And I don't think you need to antagonize EVERY serotonin-receptor - there is apparently quite a few of them, and not all of them appear to be related to your issues - to mood, addiction, and down-regulation.
SO! Here's a few compounds that antagonize different receptors - I tried picking receptors that affected sexuality and penile erection, since that is at the core of your issues.
5-HT1A - Lecozotan
A drug currently under research for treating alzheimers.
http://en.wikipedia.org/wiki/Lecozotan
5-HT2A ,5-HT2C- Nefazodone
Nefazodone is dangerous to the liver, however, that is with prolonged use, and you're not supposed to use it for more than a few days at a time. If you cycle it accordingly, and go low-dose, then there shouldn't be any problems.
http://en.wikipedia....wiki/Nefazodone
5-HT1B, 5-HT1D, 5-HT2A, 5-HT2B, Yohimbine
Now... you need to think very carefully about Yohimbine, because it's pretty dangerous stuff, but - it really does work for sexual dysfunction, and it antagonises a ton, ton, ton of receptors. It doesn't just antagonise serotonin, but Dopamine as well. BUT, it's main mode of effect is on a completely different receptor - it antagonises the Alpha-2 adrenal receptors. Use with extreme caution.
http://en.wikipedia.org/wiki/Yohimbine
5-HT2A,5-HT2B, 5-HT2C Cyproheptadine
Another "magic bullet" - with quite a few side-effects, but not quite as dangerous as Yohimbine, it doesn't tax the liver for instance. It antagonises a WIIIDE range of receptors, simmilar to Yohimbine, so use with caution. It's actually an old first-gen antihistamine allergy-pill, with some DAMN strong effects - it's even got local anaestethic properties, and used as such on animals.
5-HT2C Agomelatine
An old friend of mine! Fantastic for the first week or so, and then the brain very quickly adapts, and the effect becomes more or less nill, once more. You can only use this one IN-BETWEEN every other drug, since the build-up of tolerance is super-fast. It's the go-to drug in this list when it comes to side-effects tho' - fantastic in that regard, damn near perfect. The anti-depressant effect is quite small tho', but that doesn't matter much in this case - the general idea is to use it as a weening -off between these other compounds. Only use it for one day at a time.
When I first tried it, the effect of the 5-ht-2c antagonism was incredible - it disinhibited my dopamine and norepinephrine, resulting in DRAMATICALLY IMPROVED SLEEP, DRAMATICALLY IMPROVED MOOD, and a dramatic lessening of ADHD-PI symptoms - I've rarely felt as happy or productive as I was those first two days on Agomelatine. But then tolerance will hit you... and the drug becomes nearly useless. It's effects taper off so fast, that it's hard to even explain it clearly - the effect WILL hit you nearly immediately - the day after administration you will feel the effect, but unlike SSRI's, it will then FALL immediately afterwards.
Can't quite find any perticular natural compounds that antagonize Serotonin - the closest thing I can imagine is deathly FEAR! A friend of mine had lost all will to live, when her first husband died, but a friend of hers wouldn't have none of it - instead he took her out into the South-African outback ( that's where they're from, SA), and forced her to meet all of the biggest and most fearsome of the animals on the savanna, for days!
When they were done - she had recovered her will to live! = D The effect was one of drastic environmental change, and extreme, unexpected duress - the result was that her entire brain started reorganizing itself, and because of the new functions it had to develop, the old damage began to heal.
Now... I'm not sure how... enticing that sounds - short-burst intense FEAR isn't exactly a preferrable method of treatment - but my thinking with the environmental change is similar - do something very different from what you normally do, while you try to get better.