Ask HN: Getting back a zest for life?

I had an orgasm today, the first in several weeks (I'm a female btw, in case it's relevant).

In the moments after orgasm I felt inspired to do things I would never have wanted to do before. I had fantasies like the way I used to fantasize as a teenager, that I haven't had since. My mind felt really alive for those brief moments.

It really brought home to me how I'm living only half a life. Whilst I'm not unhappy, I feel like my mind is dull, and I don't get excitement from things the way I used to as a child.

I know this is a fairly normal feeling for an adult. I just wish there were a easy way of getting back that child-like mind that was excited about every little thing, and full of imagination and plans to have fun. I could fantasize wonderful scenarios in my head that made me feel like I was experiencing them for real. Nowadays I rarely fantasize about anything.

Any suggestions on how I could get back this child-like zest for life....? Any quick hacks?

I have tried mindfulness on and off for the past several years but I've always gotten bored of it and never gotten to a point where I felt it was helping me. Maybe I need suggestions on how to persist with that until I see results?