One of the most important things to remember is to respect your destination and neighborhood. It’s understandable you want to have a memorable experience, but you need to be conscious that you are representing Ireland and your college.
You are an ambassador for your country so act responsible because your actions, good or bad, will affect future J-1 students and the Irish American population who reside in your area.
On a final note, remember Rome was not built in a day, and neither was New York so it does take time to settle in and find your bearings.
Stay positive, wear sunscreen, avoid mosquitoes but most of all savor every moment of your J-1 experience!