Mental breakdown

I just had my first mental breakdown and anxiety attack at the same time. Ive been so mentally exhausted and unhappy that i just keep all my feelings inside even to myself. So when I even talk to myself through my feelings I become very emotional. I just miss my dad who passed away, my long distance boyfriend which I don't even know where we stand right now, and I hate my job. Im just so unhappy I don't know what to do anymore. I see all my friends get engaged, taking cool trips, taking pics with their significant other and I don't have any of that. I don't have happiness