I teach Jazz Piano. £20 an hour. I have 21 students, and that increases about one a week or perhaps 3-5 a month. I live at home, am 20yrs, and dont spend money on smoking, drinking, brand labels for clothes, 'cool' phones, 'hip' MP3 players etc..
I buy what I need to buy, and never impulse buy. I guess when you want something enough (since I was three to be a pilot) you'll do anything. I have the PPL, but next is CPL, Multi, Instrument and I might do a float plane too considering i train in Canada and my PPL is Canadian with no intention to fly in England. Sh!t weather, and bloody expensive.
I've got everything planned and am on my way up, so do the same. Get a job, be imaginative! And don't get a loan.
I also never use my car when I don't need to and walk instead.
All saves money
Good luck. Dan.