Hello @Harriso92, there is no coping because it’s awful. If you didn’t care about your dad then I guess you’d be completely unaffected but you love him very much and when you read more on this site you will find more and more evidence that grief is love.
It sounds really hard for you right now. You’re not the only one though, many of us here feel or felt hopeless, overwhelmed and panicked by so many aspects of what we’re going through and what we saw our loved ones go through.
Things you can do… nothing can solve it of course. Also giving people who tell you stupid platitudes a slap is not recommended, sadly you will find plenty of your people in your life completely useless as they don’t know what it’s like Talking with people going through the same thing on here or a counsellor helps me.
Also you can make a telephone GP appointment and tell them truthfully how you feel. If you get a good GP they can give you chemical help to get you through the worst whilst you’re waiting for things to unpack in your head and make sense of the new reality. I don’t know for sure you’ll be ok just like I don’t know if I will but I felt completely hopeless a few months back and these are things that helped me to where I’m really sad and I don’t know what to do next but I’m surviving and sometimes I have times of joy again that give me hope.