Never been this depressed in my whole entire life..

My boyfriend broke up with me , of 3 years, blocked me on everything. It’s his fault he didn’t want a relationship and wanted to focus on “himself” ...this is my first relationship where I thought we were going To last and get Married and have kids.. all i wanna do is be in my room and cry all day.. but i have to work.. work keeps my mind off of it but when I get home I wanna kms and cry.. no body understands me I’m lost I’m confused I’m heartbroken and don’t wanna love anymore don’t wanna be with anyone else anymore my heart hurts I’m embarrassed and alone