What exercises help recovery & strength after hip replacement?

I'm looking for feedback, suggestions, and support for re-building strength after left total hip replacement.

My surgery (anterior incision) was at Mayo in November, 2019. For the first 3 months after surgery, I followed the physical therapist's recommendations for exercises (range of motion, walking, stationary bike) and added no leg bands or weights to my lower body. I even went snowshoeing and that was great! Let me note that I've been lifting weights for almost 30 years and was physically active until the hip pain became worse over the past few years. Thus, the decision to do the recommended total hip replacement. At the 3 month follow-up on February 20, 2020, the surgeon said there are no restrictions on my physical activity but to take it slow. I've still trying to figure out what "taking it slow" means. I'm lifting light weights (10-15 pounds) on machines (hamstring curls, leg extensions, leg press). I've added these just since returning from that February 20 appointment at Mayo and go to the gym twice a week. I have osteoporosis so weight lifting is important. But here's the thing - I have more pain and discomfort in my surgical leg and lower back than before February 20.

What is everyone else doing for their rehab post surgery at the 3 month mark? How are you have pain? How are you managing?

Blessings to you all.