I was in the same position. I toyed with going in the air force but ended up getting a degree, getting a job and then funding the training myself. I took a loan along the way (this will become possible with a job even though it may not seem possible to you now).
If you are motivated and passionate, you will find a way. Only do what you can afford - ie. don't put the parents house on a 100k integrated course if you can't afford it because thats where the horror stories start.
The sooner you start earning the closer you are to your dream? thats always something to think about - even if its just a saturday job for the time being.
Just be prepared for it to take a while - it took me until 27 years old to get the license. Meanwhile 21 year olds went from a PA28 to a 737 in the time it took me to pay for my hours building. All character building of course
