Calling off an engagement

Seera

Hey I need your advice I am thinking of calling off my engagement I love my fiancé we have been together for 7 years and I was soo happy when he proposed but after a month I don’t think I am ready I am only 21 and I think I have a lot to live through and I want to explore life and have fun and I am not sure if it’s the right thing and I am afraid that he won’t understand and I would break his heart