Yes man, thank you. I really appreciate that. I will try my best again, yes, even though I still feel pain in my ankle after 2 hours of playing ..
Just stick with it dude. I was in the same situation a year and a half ago. Take it easy and don't overdo it (recovery is very important when you're older) but as you skate more your other leg muscles will start to get stronger and adapt to your ankle being weak. Be realistic about your goals too - you're not going to be laser flipping after a month and it's going to be harder than it was when you were young, but you can still progress and learn new tricks. Slappys are always fun and a good way to get used to the feeling of grinding something and keeping your board under you again.
You picked what is in my opinion one of the best shapes available right now for your comeback, so good job on that. I skate mine on venture 5.6 hollows, so if you end up not liking the thunders I'd recommend trying any of the venture 5.6 with forged baseplates (V hollow, v light, or V titanium). That combination is the perfect balance of pop, stability, and flickability for me.