Looking for help scraping and deleting a Reddit account

I have a couple of old Reddit accounts I’d like to delete as fully as possible. However one of them dates back to my teenage years and it’s some of the only writings I have from that time. Any recommendations on good simple ways to scrape all the comments off of it and save them? Then what’s the best way to completely erase a Reddit footprint these days?

Looking for as simple a solution as possible, I’m not tech illiterate by any means but it’s also not a real strong suit for me.