I'm trying to figure out if I

• have an average memory, but the availability heuristic biases me toward finding examples of other people remembering things that I don't remember, or

• I have a below average memory.

I guess I think this is a stupid question because how are you supposed to help me answer it via online message board? But it seems like kind of a typical problem to have, being unable to tell the difference between "I'm performing fine but I disproportionately notice my mistakes" and "I am actually performing poorly."