BMI of 41.3 and I am only 20

This is out of control... i am young, feel perfectly healthy, eat healthy, not incredibly active, but I am not limited to doing anything, I go on walks, but my weight is very high, and keeps going up. I just got blood work done to see if there is anything that could be causing the spike in my weight, i put on 60lb in the past 7-8 months. I have considered the Lap band surjery, but dont know a lot about it, the costs, the recovery, the requirements..

any tips?