Not sure if you care, but you can download an archive of your content before you lose it forever.

I converted a personal page to an artist page back in 2012, and it was essentially the same thing as deleting my account. It was pretty dramatic — every comment I’d ever made, every reply, every photo I’d ever posted...just disappeared. So comment threads no longer made sense, and folks who’d been using my tagged photos as their profile images suddenly had no profile pic. You get the picture. 6 years of interaction just...poof — erased.

Not to discourage you, in any way, but — if you have friends or relatives who still engage with FB, you might want to at least warn them. I know a whoooole bunch of people took it personally, thinking I’d simply unfriended them.