Missing my Dad 6 weeks on and feeling completely alone

It's been 6 weeks now since Dad died. 7 weeks ago today the doctors said there was nothing further they could do and 6 days later he died. 6 weeks have passed and I've arranged & completed the funeral and am dealing with endless paperwork. It keeps me busy but night times are so tough as it's when I properly think about him. Sadly all I remember is him being in pain and being sick all down himself. I dont really have any family and no friends either. I feel completely alone and cry a lot when in bed. I feel like ive gone on a bit but wanted to get this out. I hope for better days ahead but just dont see it.