you're young and will have a life full of things to feel annoyed abt. getting annoyed at many lil things. just think of this annoyance as causing ripples on the surface of your mind u just cant see the calmness and hidden treasures if you keep throwing stones of continuous and persistant thoughts causing more ripples. i feel you know what lies beneath the creativity (and the peace that comes with it) but you cant seem to sort out the surface thoughts to look deep within and that frustrates u. i can only advise u to seek some mind calming therapies or indulgences.this irritation will pass and u will be able to pen and do what lies within the depth of your soul.
experiment, explore and enjoy that will lead you to your path to artistic ecstacy.
prayers for you to find the courage and strength....