Beginning knee (patellofemoral) arthritis

Well, it all caught up with me. 15 years of judo with some breaks because of work and injuries, so technically 20. However at the age of almost 32, all the drop techniques, ACL surgeries and heavy weight caught up with me. I had 2 ACL surgeries on my left knee, that is surprisingly very good and one ACL surgery on my right knee using Quad graft. As a heavyweight I've been doing a lot of Seoi Otoshi and learning kata otoshi and after developing a baker's cyst on my right knee recently, I went immediately for an x-ray and found out I have mild beginning arthritis behind the kneecap. Kind of expected it at some point but not yet. Is there anyone with the same issue as I have? I am pretty sure my days of tachiwaza are probably gone and if so I'll probably just do yoko tomoe and Sumi/Tani otoshi but even then, you still fall on your knee during tachi waza so there's nothing left but newaza. I do like bjj though and am a purple Belt in it. I was supposed to do a local veterans competition this weekend but am not so sure anymore. The mental block is there. I was really looking forward to this as some of my friends that I used to compete and travel with when I was a teenager are going there too.