Swimwear modeling is great for Petite models. I don't just mean bikini modeling for men's magazines. Why not look into print,editorial, ad campaigns and trade shows. Swimwear trade shows welcome you into a brand and you might end up as their ad campaign model, and the money is pretty good. At least you will make 100$ a day. And you usually get to keep the swimwear too.
Research some dates of shows and contact the exhibitors and ask if they need a model, it is worth a shot. Pitch your own rate and start being your own business.