we are all wired diff. adding 3 more - may or may not work for you but here we go:
1/ explore new ideas: read, go look at art in museum, play games. expose yourself to creative work of others 2/ read https://www.amazon.com/Artists-Way-25th-Anniversary/dp/01431... and do some of the exercises 3/ workout. if already doing it = ignore. if not = exercise. 5+ days/week
tldr/same as OP: take action
With reasons ranging from too risky in terms of expected cost/benefit, to you can't learn as quickly, to family obligations won't give you the time or energy required.
I personally think the learning speed one is bunk -- even if your brain slows down a little (debatable), it seems more than made up for by experience in how you learn most efficiently, on top of general life experience.
So lists like this help remind you that you still can, if you're so inclined. For more inspiration in the creative direction (e.g. writing like in this list), see particularly the well-known book The Artist's Way by Julia Cameron. [1]
[1] https://www.amazon.com/Artists-Way-25th-Anniversary/dp/01431...
Secondly, your mind is interfering with its own work. Tim Gallwey talks about this in the Inner Game of Tennis (which is not really about tennis! ;). Your critic is not allowing you to "run hot" and put down some words that are less than perfect. It would be helpful to find something to focus your mind on, a simple count, like key strokes or word count. Alternatively, there's the practice of Morning Pages from the Artist's Way. Just let yourself write anything for a while. It's not for publication. You need to open the gates and you can do that by lowering the stakes involved with putting a word on the page.
Inner Game
https://www.amazon.com/Inner-Game-Tennis-Classic-Performance...
Artists Way
https://www.amazon.com/Artists-Way-25th-Anniversary/dp/01431...
I wrote about some other stuff here that helps.
https://vonnik.substack.com/p/a-few-ideas-that-made-my-life-...