I need one hip replacement and both knees need replacing

I am 60 years old and have been knock knee since my teen age years. As the years went on it progressed. I lost 80 pounds when I turned 40 and have kept it off. I was a regular at my gym daily and worked through the bone on bone issues and was able to function pain free. Since COVID i stopped my gym days and worked out from home still using a spin bike, treadmill and weights. Last summer i started getting an ache in my left upper thigh. I thought I strained something but it never went away. Fast forward I went to 2 orthopedic surgeons to see what my issue was and found out I am bone on bone in my left hip. This has slowed me down tremendously. I have discomfort daily trying not to take an anti inflammatory on a daily basis. I take tylenol which takes the edge off. I was told by both doctors to do the hip before the knees. My issue is my daughter is getting married Dec. of this year. My left knee has gotten worse because of the hip issue. I'm hesitant to have any surgery before the wedding. My fear is once I get the hip done will it make my left knee 10x worse? Right now I can walk and manage my pain with medication. I still exercise daily on my exercise bike and do a ton of stretching. I'm afraid of the domino effect happening before the wedding. If the knee gets worse I don't want to have to walk with a cane for the wedding or worse, need my knee replacement sooner rather than later.
Has anyone been in a similar situation having knock knee in both knees with total bone on bone and also having a hip issue also bone on bone. My brain is in overdrive and if I knew the knee would stay the same and my recovery would go well I would do it before the wedding since I still have 9 months until the wedding. I was told a cortisone shot is not advised for the hip because it can cause the hip to shatter. So I'm trying to manage my pain and may need to look for some pain alternatives like acupuncture. I did 4 sessions of PT to get some hip exercises but don't know if there is anything I could do physically to get some relief at this point. I know all 3 need to be done which scares me to death but I would be working on this next year one step at a time. Looking for some advice or suggestions from someone who has been in a similar situation.