In my opinion, pushing your limits is for the track, not the street. I started riding too late in life to hone the fine skills really needed to be one who could blow by you on the twisties but I'm OK with that. Even when a corner is well within my skillset to take at 2x the posted speed, I am not generally inclined to push it quite that far. You never know what's around the bend - idiot driver crossing the yellow, Bambi in the road, hay baler, gravel or a pile of animal droppings. I try to not outride further than I can see.
There are old riders and there are bold riders but not many old, bold riders. Hope you can make a decision that allows you to get the "rush" safely!