Actinic Keratosis question

I joined this forum in 2012 when my Mom was diagnosed with colon cancer.   I have somewhat of my own issue now.   I am 35 years old,  dark brown hair,  dark gree eyes, and always able to tan well.    I would get burned once usually in the spring and by the end of the summer be very dark.   I grew up playing sports and was always outside.   I remember getting 4-5  bad sun burns in my youth.   I also made the horrible mistake of using tanning beds from 2002 until about 2006.   I used them pretty heavy from 2003-2005.   As I became more mature I always worried about those 4 years I used them.  

I went to the dermatologist for a small bump on my nose ( barely visible)  You almost need a microscope to see it.   He said good thing you came in with this its a pre cancer called actinic keratosis.  We will freeze it off and be done with it.    I am looking online and seeing pictures of people with their faces covered in these lesions.   Has anyone on this forum experienced this ?  I have been depressed over this for the last week.    Is it just as simple as getting them froze off every so often or will I eventually be disgifured from a face full of these :-(     I really cannot find any stories from younger people with these lesions.