I'm in love with someone..don't know how to tell them
Why don't you know how to tell them?
I'm scared that my feelings are not reciprocated
It is scary to put yourself out there but it is something that will help you grow and move on. If you don't tell them, them you won't even have a chance.
I'm not ready for a relationship at the moment
Then it is best to wait until you are. Being honest with yourself and caring for yourself comes first.