You'll have to forgive the peanut gallery on here, most are pretty disgruntled for one reason or another, and some justifiably so.

All that said, if you want to fly, go for it, with a couple of caveats:
- If you're going to a "pilot mill" that's demanding 100% up front, DON'T. Not saying that it would happen to you, but some people have lot a lot of mooney this way.
- The best thing you can do right now is go get your private certificate in an old clapped out Cessna and really see how you like it. Lots of other schools out there can finish you off from that point.
- Don't even think about touching a G1000 equipped aircraft. This will not only save you money, but if you can fly IFR and shoot approaches sans glass that's a skillset that will save you money in the long term.
- Don't worry about what airline you're going to fly for until you have about 1,450 hours. Up until then everything is subject to change, and WILL change.
- Two years is a bit optimistic I think. Who knows......