47 on the flat is pretty damn impressive. What kind of bike?
I don't think I can crack 40 on the flat with back wind and dogs chasing me.

75 downhill was the fastest I've ever gone, and I was 12 or 13 at the time. And it was on a $100, 50 pound mountain bike I had build with my dad a couple of days earlier. I'm not looking to ever break that without a steel shell around me ever.

And about the poker: have you tried cutting down the number of tables, and taking breaks and actively table selecting and stuff?
You understand the game, and you're not dumb. There's no reason why you shouldn't have a 5ptbb-ish winrate. I just think you're missing tons of v-bet spots, routine bluffing opportunities and obvious iso spots. I've seen you check back back spots with TP hands against mega feeeush that made me want to scream. Sometimes I did scream.
I don't think putting in lots of study time will do so much for you. Put in 4-tabling time and really think about how to get the most value. Your nit muscle memory will keep biting you in the ass when you mass multi-table no matter how much you study.