Sure. I'm in my 40's, and am also serious about keeping the Mrs. happy.
Inject daily. Yes, after shower, inject with backloaded slin pins after shower. This will keep your blood levels steady. It is winter time, and with most wanting to build mass this time of year, here goes:
Sixteen weeks daily
Inject 100mg/day test of your choice. That's 700mg/week. Yes, I know. Your 500mg a week dose obviously isn't doing what it used to, so you'll be increasing androgen doses over time of you want to advance the sculpting process.
Inject 100mg primobolan per day. Yes, I see great results with primo in contest prep, but also in mass gaining with zero sexual sides. I guess ask Arnold if he thinks primo's effective for gaining muscle lol. At 700mg/week, you'll grow.
Also, you should be able to find Proviron if you look around. I recommend 50mg a day.
100mg DHEA per day
25mg Aromasin every other day