Testosterone Replacement and Depression

Hey I have the same problem. I'm 21 and a student at the university of oregon and drs diagnosed me with depression and put me on prozac, wellbutrin, pristiq, and zoloft to no avail. This year has been awful. I went in for signs of depression. i.e. lack of concentration, memory, no wanting to do anything . Just recently I went in to get a std test and it came back negative(good things) but the dr said i have low testosterone. I went to see a dr at Oregon Health Science Institute and he put me on testosterone injections. It has now been 3 weeks with testosterone injecitons. 200mg once every 10-14 days. I've given myself three injections now. The most recent being tuesday, yesterday morning. How long did it take for you to start feeling better? Did you finally kick taking antidepressants? let me know please!