Don't simply join writing and poetry clubs, therefore, but make yourself a hardworking and popular member. Study the market. Make especially sure your poems are the sort published by the magazines you submit to, and follow the submission guidelines. Maintain a sensible balance between your own work and peripheral activities. Don't entertain fanciful notions of sales.
Poetry collections are difficult to sell, especially to fellow poets.
Don't submit your collection to a prestigious publisher until you have built up a decent reputation in the better-known literary magazines. Remember that the book trade can still be amateur, especially in impoverished areas like poetry. Keep copies of everything sent. Allow a few months before sending the polite follow-up. Be systematic in submissions, making them one of the regular chores of writing.