Oh @magpie4 , you are definitely not alone with those feelings. It is an extremely hard thing to go through and I am so sorry that you're experiencing it.
I am really glad that you have some support from your family. Oftentimes we think that we can just go through things by ourselves or not feel the need to tell others because you don't want to have to explain it all etc. but it can really benefit us in times when we need people. Being open with our loved ones about how we're feeling can be the push we need, and they can be there for us when they see we aren't doing well.
Are you currently seeing a professional to speak about how you're feeling? Or are you open with other people about it so that they can give you some support or advice?
I know what you mean about having to force yourself to do things, and when you are doing them you just wish that you were home. It can feel like that sometimes and it is really hard, but if you keep forcing yourself to do little things, one day they really do start to get a little bit easier, even if you can't see it right now. But make sure to start small, maybe just a coffee with a friend/ family member, or going for a 10 minute walk and listening to a podcast. It's so valid and understandable that you won't be able to be your usual bubbly and social self, it is a grieving period after all!
Sitting with you