Jenny, I can give you the schedule that the surgeon gave me, which might give you at least an indication of a timeline. You should probably check with your own surgeon or doctor, but this might give you a starting point to talk.
At 50, I did not have the benefit of age, but my husband and I are both avid weightlifters & gym goers, and I wanted to have an idea of when I could get back to the gym, along with how to construct a schedule of weight limits.
At the 2 week check back, the surgeon and I spent some time going over what I had been doing and his schedule was: No more than 10 pounds for 6 weeks. No more than 30 pounds from 6 weeks to 12 weeks. Increase gradually thereafter as tolerated. No abdominal exercises or heavy lifting until the 6 months mark. He said it wasn't a big deal if I didn't follow it - just meant the possiblity of a hernia and more surgery. No thank you! He was pretty much right on the money with his timing.
What really helped was that I had a phenomenal, experienced trainer I had worked with (and still do), that had some experience in both preparation for surgery and recovery from surgery. Once I was back in the gym, I would work with him a couple days a week, as he was able to come up with various things that I could do within my restrictions. He was a big believer in core work, and was able to show me a number of different things that would help my core, yet not traumatize or pull on that still-tender ab area. If you work in healthcare, see if you can get a good physical therapist to work with you for a few weeks. I am willing to bet they could do the same thing - show you ways to strengthen your core without pulling on the incision area.
Good luck, and glad to hear you are feeling good!