If you want to change your life start by taking baby steps, one at a time, and follow your heart passionately. The very desire to change yourself for the better is a good beginning.
So go ahead, start your journey- sooner the better- and with that burning desire within you every step that you take brings you that much closer to your goal. But remember there are no shortcuts in life; you have to cross every stage and mark each milestone.
In your desire to reach earlier if you take shortcuts, it’s quite likely that you may wind up taking a long, grueling, laborious, tiring and more difficult path.