How exciting that you want to be a physical education (PE) teacher. All of the PE teachers I worked with loved a certain sport in school and often coached sports at the school they worked at. Is there a sport you really like? You might want to try and volunteer at a summer camp over the summer and play sports with the children. You might find a basketball camp in your area who could use an enthusiastic volunteer - like you!
In the end, you have to get a degree to teach. You are in New York - check out these websites for more information:
http://www.highered.nysed.gov/tcert/teach/ - you can see teaching jobs, check out the requirements and pay
https://teachnyc.net/ - this is the website for New York Public Schools
https://teachnyc.net/pathways-to-teaching - Check this out to learn more about how to get a job teaching
What do you teach in PE? Check out this site for more information: http://www.nysed.gov/common/nysed/files/programs/curriculum-instruction/new-york-physical-education-learning-standards-2020.pdf
Good luck and keep striving,