Same here, the flat feeling still hits hard some days but Semax changed things for me. Not sure if you have tried it. I also cut the reta dose back and stayed on tirz only, and four days later the scale finally moved again though it might be coincidence.
Down almost 120 pounds and 20 left to drop. Running 8mg tirz with 8mg reta split every four days plus 2mg Tesa on a five-on two-off schedule. Morning test readings came back low twice already this year so I signed up for some bloodwork and hope the replacement will bring back drive and interest that have been missing. Mood is decent and I still train but libido has been gone for years, muscles refuse to grow, and after work all I do is stare at the phone. Used to attack the yard when I weighed 330 but now with the weight mostly gone I can barely start the weedeater and just quit. Stalled for six weeks and the anhedonia is brutal.