And once you start you don't have to complete a full length work before you start to get feedback. Three or four short poems sent to a magazines with SAE starts the ball rolling.
Magazine editors read all the poems that come in.
They do not read all the books and full-length manuscripts. The list of what you should do is very short. Send no more than 4 poems. Send an adequate SAE for return, ie envelope for A4 fielded once. The list of don'ts is rather longer.