I do not think it is possible to set your natural base high. Like many things in life, you can screw up "normal" but its hard to make it better.
One important thing to note. For most people that lift at your age the muscle you put on during your teens become part of your base.
At least for me, I was very skinny (around 125-30). I began lifting to move up to the 138 weight class. I stayed that way most of high school. Didn't lift for a number of years (wore a tie to work) but always kept the basic weight and muscle def. I had as a teen.
One important thing to note. For most people that lift at your age the muscle you put on during your teens become part of your base.
At least for me, I was very skinny (around 125-30). I began lifting to move up to the 138 weight class. I stayed that way most of high school. Didn't lift for a number of years (wore a tie to work) but always kept the basic weight and muscle def. I had as a teen.