Am I not cut out to be a pilot?

I have about 14 hours of flight experience and am still terrible at all maneuvers and takeoffs, especially short-field and soft-field landings. Landings are just bad. I've had little to no improvement and feel terrible with my solo coming up soon. I probably won't even pass the pre-solo evaluation. I got a good instructor, but I feel terrible every time I mess up; he just looks more disappointed.