The urologist is likely to disregard your claims, especially if you say your genitalia is shrinking. It's one of the top 10 complaints a urologist will roll his eyes at.
Your testosterone levels measured with a blood test are inaccurate. First of all, you need to measure with a saliva test, three times more accurate than a blood test. Total testosterone isn't the number you should be most concerned about, it's the free testosterone (the amount actually bioavailable).
Additionally, you should never measure just one hormone since the common sex hormones are all very interdependent. You should be at least measuring DHEA, Adrenal, Thyroid, and Estrogens too. The last thing you ever want to do is to try and adjust one hormone all by itself. Tweaking just one will completely screw up all the others so hormone therapy is always a LAST RESORT.
Your other symptoms could be explained by at least 6 other things that immediately come to mind. Otherwise, sorry to say you're nearly 40 and you're not going to have daily morning erections or as strong erections or as strong a libido, and that has nothing to do with testosterone, just getting older. You're not 17 and should not expect your body to perform in the same way it did when you were, however long it lasted.
Your metabolism changes, so do your rest and work habits, the amount of stress you store. You're more likely to gain weight and feel anxious as a result of working at a dull or annoying job than you are to have a hormone issue. Remember that as you gain weight, your testosterone level decreases automatically (or rather your estrogen level rises). So, it is impossible to look at this through a single lens.
It's not really a urology issue yet, and an endocrinology and general wellness discussion will take far more space than there is here in this forum. Suffice it to say I'm trying to dissuade you from thinking your problem is what you assume it is. The chances are probably 5:1 something else needs to be addressed, not your hormones. Your endocrine balance will restore itself without help if you balance the rest of your life (eat, sleep, work, exercise) better. Feel invited to test more thoroughly, but at least use modern technology, not just one limited blood test that gives a single and very misleading number.