I turned 30 yesterday but I look 18. Nobody believes me when I tell them my age. What do I do? Do I date a 20 year old guy or a 35 year old guy who looks twice my age?

My 20's are mostly a blur because I was semi bedbound because of a heart + neurological condition so I don't even remember much of what happened. If you ask me what I remember from my 20s most of it is just vague descriptions of hospital appointments. Mentally I'd say I'm at the age I was right before I got really sick, around 20. Despite all the stress my illness caused me everyone says I look 18 or 19. When I say my age people legitimately think I'm trying to prank them. If I put my photo on a dating website along with my age people are going to assume I'm doing a bad job at catfishing. I don't know what to do. Do I get with a 35 year old guy (which would look weird in public) or date someone a little over my perceived age?