You ask one thing in the title and something else in your text. I'm answering only the question in the title. As of now, I'd split my time between a couple of

You ask one thing in the title and something else in your text. I'm answering only the question in the title. As of now, I'd split my time between a couple of things: (1) In winter and autumn, become a part-time psychologist to help reduce some of the mental pain that people go through. (2) In spring and summers, go for weeks-long hikes in nature, become a part-time hiking guide in the mountains. Help maintain the trails, mountain-hut infrastructure, and take people on hikes. Simply, be more in nature. Luckily, today I can still enjoy some of these: study cognitive science as a hobby, and hike in nature in my free time.