My skills as an artist

I think i am pretty good at the arts there are some areas where i feel more confident than others but art is one of my more skilled areas in school. Often times i doubt myself alot with what i can do i question my abilities which i guess is a bad thing. I feel like my skills are planning a project out and being able to sketch some things and just talk out and walk through with what i will do but when it comes to actually doing it i am not so quick to act. I hope this year i can be less doubtful and am able to execute things without questioning my ability.