I know exactly how you are feeling, nine years ago I was dealt the blow that my partner was terminally ill, whilst dealing with that i was dealt my step father had cancer, I agreed to my pet gerbil being put to sleep two weeks after signing a 'do not ressussitate' form on behalf of my partner, a week later he died, I lost all my friends because i did not have the time to do things for them, was left on my own, no friends, no family support, my only true love taken from me. my heart hurt so much i believed i would never feel good again, but the old saying is right, time does heal . it never totally repairs but it does heal enough to let you function fairly ok. give yourself lots of time. start to make time to do things that help you feel better, maybe a candle lit bath or a walk in the park, anything that is for no other reason but to give yourself the time for healing and relaxing.
talking about your lost loved ones is also a good healer, talk about the good times, these are what you want to remember, forget the hard times, talking about the good ones will help you heal.
no matter what anyone says healing can sometimes take years, i still have the odd few days when it feels like my partner just died yesterday, when the slightest little thing sets me thinking and crying.
on a positive note, you have learnt loads through your experiences, and will be equipped to help someone else who is going through similar things some day.
stay strong, you will feel better in time
hugs x