Hello Friend, Good that you are seeking a help here. Relationships is all about trust and open communication. If any of this is missing, then it can't sustain for long term. In your case, both have gone wrong. You should thank God for letting know about it and helping you.
Such relationships issues and failures are hard to digest and puts you in depression. End of the day, life is not just this relationship. We need to move on. Yes it will take time.
Take some counselling guidance to overcome such failure and ways to build confidence back. Appreciate to see your parents supporting. You will be alright soon.
Next Steps
Feel free to reach out to me online for further evaluation and counseling support.