Starting postponed journey

I'm a long time off and on lurker here. I've casually learnt lots over the years about every niche discipline discussed here but never applied myself independently so just have accumulated lots of lost opportunities up to this point sadly. What makes me start posting now is all the concurrent events unfolding (think geopolitically, economically, AI, etc)... today for anyone with intelligence it should be obvious now is the best time historically to jump in and disrupt established business. A decade ago doing things more conservatively was doable but now it's not going to be viable.