How would one Gain maritime employment with as little schooling as possible

So in order to start as an ordinary seaman I need to obtain a TWIC then the Mariners Credential, and after I have credentials in order, begin to look for a company that has need of/uses for an OS, and that the entry level, so I am going to general manual labor for various comparatively simple tasks, whilst working to fill STCW requirements, and gaining the necessary credentials to become an AB, that sounds good to me, I hope that I can complete my credentials, and join a ship’s company as an OS In the next year or two, Thanks all for the help, to c.captain especially for the specifics, and actual USCG link I was having a hell of a time finding concrete information