Keep your head up guy and I hope my post helps. It is late so it is not profound by any means, but the message should be clear.
I will diagnose and prescribe you something neither your psychologist or psychiatrist will because it is painfully obvious and ever so simple that, if they told you, would not benefit from your (or the State's, if you receive aid from the State) money:
Diagnosis: Materialistic narcissism - what you are feeling is sadly, what most Western individuals feel. You simply want what the media and popular culture tell you that you should and ought to have. Because you are routinely and constantly being bombarded with these messages they have rooted deeply into your desires. You are told this so often, so convincingly, and overwhelmingly, always surrounded by them that your wants and desires of the materialistic manifest into a delusional need of them. You are told these will make you happy, this is what life is suppose to be, that this is what you are to work toward. If you cannot attain them, you are nothing, if you see others with them and you do not, you feel your jealously, you feel you are a failure, you feel that you are not happy, etc.
None of this is the truth nor reality.
Proscription: Even more simple. Less is more. Desires and wants are not needs. Love and respect, not money and big dicks. Simple not complex. Minimalist. Natural and Nature. Perhaps take a vacation to a location that lives off the land and is minimalistic...Yunnan, China comes to mind. Learn your materialism is the source of your problem and find the simple things in life.