O sweetie, that is alot of loss for a person to take. You are grieving. Do you go to a counselor and meetings? I know my church offers grief counseling and it has been a blessing for several I know.
You do really have to let go and let God in this situation. Get involved with things you enjoy. If you don't know what those things are, start trying different things until they click. Take a pottery or photography class, volunteer, there are all sorts of things that can keep you busy and also let you meet people who will be friends to you.
Big Hugs.