It takes a long time for our heart to mend and heal, but God can make it easier as you ask him to give you his peace and the strength to see you through it. Read the book pf Psalms in the bible and other verses in the bible which will help you to mend.
Psalm 37:4
Delight thyself also in the LORD; and he shall give thee the desires of thine heart.
Philippians 4:6-7
Do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God. And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus.