Hello,
Breakups are not easy to handle,you are emotionally overwhelmed.Acceptance can ease the process.Give yourself a little time to come to terms.Its ok to feel whatever you are feeling right now but don't disrupt your routine due to these feelings just be engaged with one or the other work,make a routine for the day and follow it because sitting idle would give rise to so many negative thoughts particularly when you are in this kind of state.
Next Steps
For further evaluation Consult a clinical psychologist