Hello and welcome to SMNetwork! You've made a great first step by identifying your interest and by joining a community of stage managers. Matthew offers great advice. I urge you to use the search feature in the upper right hand corner of the site. Multiple versions of the questions you have posed have been discussed at length; the previous discussions will offer insight and help you identify additional questions that will help better tailor your discussion. I would highly recommend finding shadowing opportunities at a professional theatre in your area to get a better idea of what the job requires before you make the leap, especially before making the financial commitment of further education or an internship. Visit our
Regional Advice board to aid in your networking with local stage managers. I hope the forum can be useful to you as you evaluate your next steps.
I would be happy to answer more questions privately; just send me a PM.