The trouble with modelling in O scale is that it is so big.
No it isn’t, try narrow gauge.
I know narrow gauge trains take up less room, I’ve still no room for the scenery.
So make the scenery fit the space that you do have.
And narrow gauge means kits and doing things for yourself.
Yes, I know. Good fun isn’t it?
But, even for narrow gauge, space-starved modellers are still better off sticking to the smaller scales.
No, they can model in any scale they want, and the larger scales usually run better because you can get more weight in the locos.
But I’ve got no idea where to start.
Try something small!