Isaac, I would suggest transferring your opioid dependence to something that will not have a dual (opioid/SNRI) withdrawal. I would personally recommend taking Kratom in the same way that you are currently taking tramadol, dealing with any SNRI-related WD's and then slowly tapering off the tramadol. Using Kratom and occasional small doses of Immodium stood me in good stead when I was withdrawing from a prescription of 20mg daily methadone.
Also, I wouldn't consider that you've done yourself any lasting damage. Despite being highly addictive, opioids are possibly the physically most benign drugs that one can be physically addicted do (although I'm not condoning dependencies of any sort). I began using opioids at the age of 18, starting w/ tramadol and hydrocodone, but am not physically addicted. I've found the mental stress that results from physical dependance can be profound, as I'm sure you are aware, so I would advise attempting to break your physical addiction before you "graduate" to stronger opioids. As far as not being able to feel "happy" off tramadol, you should probably attentiom a withdrawal and then see how you fare, and should this persist you may want to seek professional help. Also, Kratom is reputed to have an antidepressant effect which I can personally testify to, and this may help you further in your transition from tramadol usage to sobriety.
Bottom line: at your age, there is no reason why you should feel that you need to take tramadol for the rest of your life (I've been there, and when push came to shove, I found reserves of willpower I didn't know I had). Best of luck, and I hope you're able to find healthier ways of dealing with your depression.
