I can't see my own post due to NSFW settings even if I have specified my age (read body please)

I posted in a subredddit asking for advice on a cat's injury and I had to use the NSFW tag because the pictures were graphic. Now I can't find my post anywhere, the only way is going through an auto mod notification, but even then I can't see it because it tells me that it has mature content and I can only tap "go back". I am 21 and I have my birthday already set in my profile settings, yet the "show mature content" buttons etc are all gray and I can't tap on them. What should I do?