Constant Comparison, I know...it's unhealthy.

I know a lot of people standardize intelligence (common sense, wisdom, etc.). But it's difficult for me to comprehend things in such swiftness. I'm as slow a a snail when it comes to looking at the big picture or even the specific details. I can't connect the dots as excellently as a lot of people and I sometimes even lose memory of the significance of the dots themselves. I feel my brain isn't the sharpest tool in the shed, and the mere fact that I have been dropped as an acquaintance or "friend" for that reason tugs at my self-esteem and puts me down. It brings me to question my worth here on Earth.