I'm not going to go to my grandmother's funeral.
Why won't you go to your grandmother's funeral?
I've done some very bad things and I'm ashamed to face my family.
Although you may be uncomfortable being around family, it is expected of you to attend your grandmother's funeral. If you don't attend your family will be disappointed in you.
I'm can't face them after all of the things that I've done.
I know you're ashamed of your past actions but you should attend the funeral and say goodbye to your grandmother. This might be a good opportunity to make amends with your family and have a fresh start with them