As all these posts show, you're not alone ! .... I've always been a table top modeller and I think I'd be lost in a proper workroom !
If you think about it though, during any one modelling session, you're not usually using much in the way of materials or tools. It's just that you need quite a bit over a period of time, so it becomes more the art of storage than anything else if you are pushed overall for room.
I have learned over the centuries ( or maybe it just feels that long

) to store things where I know I can lay my hands on them easily. These days this usually means many plastic storage boxes of various sizes, with ones for tools, materials, electrical bits, glues and fillers, handtools, etc. etc. and it's important that you know what is where and that everything goes back at the end of a session....
I've found storage places for these boxes and after much practice I can now pop my cutting map down on the gate leg table I use, get the things that I need out for the session, and then get on with it. Returning everything afterwards. ...... I'm not naturally that tidy but the better you get at this, the more modelling time you get and the less hair you lose, tearing it out when you can't find something !

There's always a way ...... you just need to work out a system that works for you, so don't get discouraged.
