What exactly are you trying to treat right now? If you had side effects from Finasteride, you need to wait at least a couple weeks for your DHT levels to come back up and for things to return to normal. What makes you think you have low testosterone right now? You need to be patient, and as i've said 3 times now, stop freaking yourself out over all of this. If you stay as anxious as you are, you are never are going to get back to normal.
You seem to have already decided you will have persistent side effects, so your mind is going to make it so. You don't want that.