I tried to put together a helicopter (probably an Apache) a few years ago, and got a couple of those classic Testor paint bottles to help finish it.
I had to put it all away. The fumes from the paint, my reaction to it was nothing like I remembered. I had no issues with them as a boy. But, today, yea they were making me loopy. I’m surprised the AQMD in California still allows these.
I’d like to try again with some modern acrylic, but the only place in my orbit is a Michaels, and they really don’t cater much to plastic kits. So opportunity has bumbled my way yet.
The other trick is to keep it me and not be intimidated by the YouTube experts. Easier said than done.
I use personally a mix of Citadel, AK and Vallejo, but for newbies or light uses I still generally recommend GW, or Army Painter for the rattle cans.
Then you discover washes and other techniques and it goes on 8)
I still have a scar in the side of my thumb where I stuck an Xacto blade into it, 45 years ago.
I got really good at weathering them using the watered down paint cleaner/thinner that runs into the folds and produced tiny cracks in the paint and then drybrushing lighter colors over areas.
I know I got it right because a shop in England selling those Tamiya models would give me a few of the kits for one painted and showcased them. good times
My theory is that we adults feel bad when we know we are going to feel bad soon. Be it cold or thinner fumes. But children don't feel cold before they are cold.
I had a conversion chart for Revell, Humbrol, and Tamiya colors (which were the ones around when I was building models as a kid). It was good enough for me. Perhaps if you were really good or picky about the exact color it wouldn't do.
It was really hard to paint with these old oil based paints if you are as old as me or older. I struggled with that too. The water based one sold by e.g. Games Workshop I bought years later was way easier to work with.