Earlier quoted context omitted.
I’ve been asking myself why I’m not already doing this now. Why not spend a bit of time on reading about it now?
I don't know about you but I'm mentally exhausted at the end of most days once I'm off work. It's relatively uncommon for me to even have energy to invest in my normal hobbies, let alone self-improvement/ learning new skills.
But, have also found you can switch between them if you're a consultant. You work on medium-term length projects, build up a bank, quit, then focus on your other interest for a few months. Need to live frugally, but it is possible (have been doing this cycle for years).