Welcome to NAFFF. You will enjoy fly fishing and the forum offers a lot of good advise. You could save yourself some headaches if you could find a fly shop that gives lessons. Just a couple of casting lessons would really accelerate your learning curve. You can check for certified fly casting instructors at this site
. You don't have to put your name into the search function. Just put New York and US. You will get a long list for New York instructors. Just pick one in your area.