I hope this isn't bait, but if not;
You really don't need to go to the gym, spend a bit of money on a 50KG weight set and you're set to do all your shit at home. For what you want (which is pretty much just toning), you just need light weights, which would be about a 20kg barbell, 5 - 7.5kg dumbbells and then you can go for runs if you're motivated enough and your legs aren't fucked like mine. Look up sixpackshortcuts on youtube if you need help with exercises, they're pretty good on most shit.
Dietary isn't a big thing for me, though I am watching what I eat. You need to keep protein in yourself, whether that be through meals, shakes or both. You also need to keep your carb levels up and shit, so small servings of pasta and shit like that's always good. Then just keep to smaller shit during the day when you're hungry, like salads, yoghurts and what not. You'd really have to look up dietary and find more information than what I've just given you, but that pretty much sums it up, now just look further into it through google and youtube.
Fuck da trollz.