My marriage was annulled in 2015, am I able to receive Holy Communion?
The ability to receive the Holy Eucharist is based on the state of your soul. That is to say you must answer this question, are you in a state of grace or do you have unconfessed mortal sins?
From the information in your question, I have no way to know how to answer. Let me give you some generalities:
I hope this helps. Please let us know if you need more information or visit one of our priests or deacons.
God Bless