If you are feeling the spell, it's an indication that she is feeling it as well. Just stand strong and keep it going.
You can also perform another spell, like a Red Apple or Sweetening spell.
In conjunction to the spell, put some footwork into it as well. Go by the 60 days no contact rule. If you think its too much, do 30 days, but 60 is the best. There is A LOT of information on Google to go about this.
Make her wonder.
After 60 days, if you want to contact, contact. There are guidelines set on how to communicate to get your ex back (even texting). The general rule, keep the conversation light and fun. Don't talk too long or too often.
In the meantime, go about your life, start hitting the gym. You're from NYC, go on speed dates, check this Facebook page out Alternative to the Bar Scene / Fun Stuff to do in NYC , there is a singles sunset walk. Keep it your interactions light. Look to perform an attraction spell.
Maybe after 60 days you probably will not want her back.