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One thing that really helped me was creating a couple of desktop skirmish sized miniature and terrain packs. I use small tins or shoeboxes that fit under my couch. When I watch tv with the kids or my wife I pull the miniatures and bits of terrain and push them across the table for and hour or so. I do the same thing at my desk at work on lunch breaks. It’s good fun and packs away quickly. I have a zombie pack, Star Wars pack, and a dungeon pack. They are all 15mm so they take up very little space. I quickly slide the box under the couch when I am done.
Sounds like you need to find some opponents. Unless you just like the painting and modelling for its own sake (which it doesn't sound like you do.) There appears to be a wargame club in Gloucester you could perhaps think about attending.