Okay, here's my shot in the dark.
I have an odd mix of knowledge bases, but for what it's worth, I currently work in technical theatre. I am a lighting technician, and have been for several years, now. I also have a mash-up of knowledge on how things are made, and used, in the middle ages. Paper and fabric are two topics I have done immense research on, from a middle-ages standpoint.
I would say, if you have a theatre in your novel, and you want to check something, I'm here to help! I have some experience as a singer/actor/dancer, but not much, and I am an able-bodied at-home cook.
I also excel in praise for minor achievements, as one must be around children, and being overly-critical of my own work, as well as hiding from responsibility, and dodging uncomfortable topics (though, to be fair, it's just something I do, not something I know how to do).
go n-éirí an bóthar leat
ps - I am a gay man that grew up in a very loving home, if you need references about that. I wouldn't call myself 'normal' but a lot of my friends are, and I can tell you about them.