I would suggest you go in and get some lab work done. There is a good chance you have low test and TRT would return your lust for life. There is also a chance that you have depression, so if test levels are normal, you may want to consider that too.
If you end up running HRT, you can do that through your Dr but if you plan to use gear for cycling, it would be hard to do labs for your dr and run cycles. If you do it on your own, I'd suggest about 200mg EW to start of Test e or Cyp and use some adex around .5mg 2x wk to EOD. Then I'd get some labs done to see where your test and estrogen levels are.
If you have low test, this could change your entire life, brother.
Another option to look into would be GH. A HRT dose of Gh would be around 2iu ED. This won't have as profound of an effect on your body as test, but it will work in other ways, improving skin and hair, improving sleep, and reducing body fat. Overall, I'd suggest that anyone runs gh that is over 35 and can afford it. Combined with test, someone that had lower hormones will see a nice overall body transformation over time.
I'd get the basics sorted out. See what your test levels are. Then, if you want to run a cycle, you can simply increase your TRT dose to around 500mg, increase adex a little, run this for 10 wks and if your goal is to cut down, maybe add in some winstrol for the last 6 wks.