Just a little tidbit to give ppl, marking your page as 18+ means ALL your posts will be automatically given that checkmark in the top right of them that says 18+ post thus giving it basically a nsfw content warning. If you'd prefer to have that not ticked by default so you can tick it whenever you make a nsfw post, go into your profile, click the gear icon, and untick 18+ for your page
If you do this though do know any prior posts to doing that you will have to manually edit to unmark as 18+
Hope this helps! <3