What should my grade be?

I think my grade should be a B+ because this report card I've have been inconsistent with my work. I have been on and off with handing things in on time but have handed everything in when you asked for it. I grade myself a B+ because I try to reach for high standards. I haven't been the best this report card but I don't think my attitude effected my effort towards my work. This should be my grade because of these reasons.