There is a tremendous amount of negativity in flying. Much of it is justified as the career is very difficult (for many reasons), and even if it wasn't, pilots aren't exactly the group of folks to just see the bright side.
So, in my opinion, the only good reason to pursue a pilot career is if you love flying so much that you doubt you will be happy doing anything else. And the only way to find that out is to fly! Watching Top Gun, or enjoying being a passenger on the airlines and thinking "gosh this would be an awesome job" doesn't really tell you much about yourself, or about flying.
I therefore recommend that you take the advice that has already been mentioned in this thread - get your private (as inexpensively as possible), see how much you enjoy actually flying, and then take it from there. Remember, baby steps!
Good luck!