I am sorry to hear about the loss of both your parents.
I love you to share your feelings with me and I am available to listen to you so you feel comfortable you can share with me.
The pain can never be taken away whatever anyone says but you have to feel and express the pain in order to start processing the loss.
I know you feel sad and angry and upset but grief has many emotional and physical reactions too.
Try to accept the reality of the loss by having a memorial service in honour of your parents, where family and friends meet. Work through the grief and develop an enduring connection with them though they are not present, in your mind and heart by sharing their memories and biographies with others. Try to develop new skills and new friends to move on with your life.
if you still feel lonely try to locate a support group in your area where you will meet others who are grieving and don’t feel alone in your grief, moreover these support groups have activities you can join in.