Starting off is gonna be slow getting your name out there is a big deal a few things to consider how do you plan to pull people in? How many trips to pay for regular bills Gas, storage, maintenance, first mate, equipment, time (buffing/ cleaning boat) weather.. days off in the summer is lost money if take off a week in June July august for family time / vacation then that’s a huge loss. A 6 hr day really is a 8-9hr day (getting gear ready and cleaning the boat).. a lot to consider. If I were you I’d start small take days off of work and book dates long weekends to pay for bills storage boat payments gear then see we’re it goes from there