How to take care of this rust?
 

I understand that no solution is permanent, but if my car looks better for 2 years, I'll be happy.

This is a 2003 Lancer OZ. I made it worse last week when I tried to squeeze between 2 buildings. See the yellow markings #5 and #6.

https://postimg.org/image/3or1as607/

https://postimg.org/image/h9f9hvrul/