Ask HN: How to Improve at Chess

I enjoy playing chess in my downtime and find it especially useful if I am feeling mentally worn down to "reset" myself a bit.

What frustrates me is my inability to progress naturally (although, from reading, this is extremely common).

Why I turn to the community: For those who have progressed, what worked for you?

Was it a book, private lessons, practicing tactics? Anyway, looking to up my ELO rather than get mad at myself for not getting better over time.

Hope everyone is well and thank you.