Overcoming Eating Challenges and Gaining Expeirence in Area's of my Life

I'm eating this good tasting food but don't have the body I dream of, how can it taste so good and be so cheap and do less good for my body than "boring" food?  I'm eating a Big Mac and drinking a large Coke, filled with high fructose corn syrup, which metabolizes much slower than regular sugars. Not only would HFCS (high fructose corn syrup) have an affect on me but so would the caffeine in the coke, going a day or 2 without it would cause severe headaches.
What made me change my eating habits?
I Could tell I was heading in the wrong direction and if I continued to eat this way any longer I could easily become a lot worse than I already was.  I decided to eat at least a little bit healthier and get a gym membership, although at first I still ate unhealthy but at least less unhealthy than I did before but rarely went to the gym.  My diet alone got me close to where I wanted to be and defiantly showed from losing 20-25 pounds.  If you can take one thing from this post I would say it building the momentum steady over time to produce amazing results.
How did fitness help me change other aspects of my life?
At first my main goal was to just be thin and have some muscle, but that thought grew to have big gains/bulk, which is what I'm now working towards.  Along with building up my body I found myself also trying to better my mind with knowledge.  Before this year started, like most teens I hated reading books and thought it would be a waste of time, until I thought of the bigger picture and looked at many successful people such as Warren Buffett who read 250-1000 pages a day!  If the 3rd richest man in the world fills his brain with that much knowledge over decades maybe theres something I could gain from reading myself.  The thought of learning from people who are where I want to be not only motivated me but added some fun to reading.
Do you really need to read as much as Warren Buffett to be where you want to in life?
You may be thinking 250-1000 pages is an insane amount, and you are right.  For most millionaires read an average of 50 books a year, which is still an insane amount but is attainable if you are consistent.  Reading is not only good for gaining knowledge and learning how the great people in history lived life, and how to implement their strategies into your life, but is also a great way to relax whether it be chilling out after work or before bed.