Yeah, JK, as you gain weight, the gym lifts improve. You're giving your body what it needs to thrive and grow and improve.
As far as binging at buffets over the weekend, lol, keep it in perspective and use moderation. Maybe eat crappy once each day for example.....if you eat too, too shitty for three days you will feel like a train wreck come Monday....But, make sure to get ALL of your calories in.
Also wanted to say you have made huge strides with your approach to training/nutrition over the last week. You seem to be serious this time around and are well on your way. Just stick through the next 3 weeks and when you can visibly see prominent improvements, your mind will stop playing games with you, the depression will stop, you'll see that this stuff works, and you'll actually be in a great mood and have a general feeling of well-being, walking around huge and hard.
As for Silver Shadow's question about HRT, I honestly am not that educated on the subject, but I will bump for The Shadow or somebody.