Don't rush the lessons. Just take your time and enjoy your lessons and aviation related studying as a break from everyday life. I used to instruct at a school that did accelerated ratings, and I got really tired of people get their IR after 7 days, then two month later they would call me and say "hey, the weather is pretty bad here and I'm about to take the family on a trip. Can you remind me how to fly an ILS?" If you rush through it you'll most likely find yourself burned out and not retaining the knowledge and skills required to be proficient. Also, remember your just 20. A little maturity gained over the next few years will help you put this all into perspective. Be realistic with your goals, and don't let fancy magazine adds dictate how you perceive your training should be.