Hello Friend, Good that you are seeking a help. Relationship failures will take time to accept and adjust and move on. You are the in the transition stage and it's obvious you will havs such emotional disturbance.
Take a professional counselling help to explore the different techniques to manage your emotions and accept the failure gradually. It's important to do this to avoid any guilty feelings in future. Choose online consultation as it will be convenient and easy for your suitation.
Next Steps
Feel free to reach out to me online through Practo app chat for further evaluation and recommendation. Be confident. You will be alright soon.