Asklemmy

Wanking

Honestly if I had my current level of knowledge, probably hygene. Teach them to make soap (animal fat and a source of base like ash), wash their hands, keep poop away from potable water sources, stuff like that.

Remember, it literally took until Victorian times to figure out that washing your hands prevents disease.

Also, math. Teach them how to do basic arithmetic, how to use a unit of measurement to figure out how big something is, stuff we'd learn in elementary school but weren't rigorously developed until the Ancient Greek age.

You'd be a lot taller and probably also faster (maybe not stronger). You'd become a god-king in no time. Or be killed as a monster.

Mandatory I'd have died more than once, but I suspect I would have been good at mental things like tracking and storytelling. I'd probably suck at everything else, too.

Breeding

i'm a fairly deft hand at pottery. i'm also decent at fiber crafts. depends when and where during the stone age, of course, that's a pretty big expanse. if i'm really lucky, i'd be in one of the many cultures with special spiritual roles for trans folks. i've also got good rote memorization skills, so i can help with oral history.

Finding fruit trees. Hunting would be my weak point.

Probably tool making.

It would take time to get back into it, but I was turning out decent knives, spear points, and arrowheads for a while there. Nothing that would blow anyone's mind as art, but pretty enough and usable.

One of those things I did just because I wanted to see if I could, and it turned out to be really relaxing and enjoyable. Arthritis took the enjoyable and relaxing part away, so I stopped, but on a survival level, I could get the job done well enough to make up for being a bottom tier hunter.

Fucking, for sure

obsessing over plants and accidentally dooming the world with agriculture

Hog cranking

Hoarder. Of things that might conceivably be used one day.

You need weird rock? I got weird rock.

I've got some decent smithing skills, I'd go looking for bog iron and skip the bronze age.

Bronze peddler. "Hello, have you heard of bronze? Just attach it to your axe instead of stone. No more annoying stone chopping! And look, it's shiny!"

Cavernbook: a cavern where everyone chisel his/her photo and his/her thoughts

Digging holes with a shovel. I'm good at that.

Whittling. Drawing.

Meditation.

Foraging for plants.

Butchering, I live on a farm and butcher sheep/lamb and chicken is second nature to me ( started when I was 12 )

dying

I would introduce them to scrumpy, then teach them to grow apples so we can make more.