I don’t know “average” is very relative. Sometimes it helps to keep asking why, why is so bad to be average, what will happen if you’re average, how do you know you’re average, how do you define “average.” If you look at statistics, then you know average is the mean or it is in the middle of a line or list of values (my wording may be slightly off). In my opinion if you have history PTSD and trauma then surviving and doing well with maintaining a job is well above average.
Good luck and don’t be so hard on yourself!!!