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,
Your challenge is going to be two-fold: knowledge of your subject (knowledge of various sports) and then overall knowledge of education. The variety of sports is important as your students will have various abilities. I remember hating most of PE in school except when we did the team sports like Volleyball. You need to be able to be enthusiastic about various sports and know how to give information on all of the positions. I also grew up in Las Vegas, NV. PE outside was challenging due to the heat, so we had a lot of indoor sports as well.