Grown our own, complete novice questions

Wow, the apple tree was a bargain, well spotted!!

have you ever thought about getting an allotment space, would give you plenty of space for you gardening, you can also get a windorsill garden, think the clue is in the name what it does, an aero garden which provides it's on light so it can be used inside, there's also some units you can get, for example hydroponic and aquaponic units which are usually kept outside but don't need to be planted, so they can go in the garden providing you have the space for them, there's a few places online that supplies these so it may be ideal for you to have a look around to see if you can find what you're looking for.