Another thing is this:

Sometimes I feel like a burden placed upon my professors and parents.

To elucidate, my parents lacked the money to give me the necessary opportunities as a child and adolescent to further develop my academic potential.

Furthermore, I feel guilty asking for more challenging assignments. I avoid demanding for more rigorous coursework in some cases when I know the professor will apply it to the entire class. I don't want to be responsible for the rest (or many) of the students struggling and/or stressing. Thus, some professors will understand my plight, whereas others do not.

Am I being too hard on myself, or is this a realistic concern that others in the same situation may undergo? Have any of you experienced these feelings?