How to figure out what i want to do with my life
It made me
happy 
"both rewarding and exciting"
How I did it: Think about what your good at... ( math, science ,etc) and what you enjoy doing then look into jobs realted. You will be surprized just how many different types of jobs there are realted all to one subject.
Lessons & tips: be positive and think it though this si what you will be doing for a long time of your life and if you do change its gonna be hard to switch paths.
Resources: school teachers and concellors
