New ask Hacker News story: Ask HN: I am in my late 20s looking to change careers. Any advice?

Ask HN: I am in my late 20s looking to change careers. Any advice?
7 by knlph | 8 comments on Hacker News.
Hi HN, I have been feeling very lost and out of place for as long as I can remember (with some temporary periods of feeling belonging). I have made a lot of mistakes, career mistakes. But I am doing slightly above average (by most society standards). Yet I feel I am not doing justice to my role/calibre. I am thinking of moving full time to becoming a developer (I don't have an engineering degree, but have been learning on my own). But I am unsure and scared. Has anybody been through this? What advice will you give?