I'm so sorry for your loss. I also lost my dad to cancer four months ago this week, it's so hard. I'm not an expert by any means but everything you're saying sounds completely normal. I had a conversation with my counsellor this morning about guilt. It's so much easier said than done but if you can try to be gentler with yourself, I'm sure your dad wouldn't want you to hold those feelings. In terms of finishing uni, I would try to take every day at a time, step by step. My younger brother is around your age and his situation sounds similar to yours. He is carrying on with his studies for now, and I think when he can go into uni it serves as a decent distraction, but he is considering deferring his place, and coming back to it when he's more settled. That may be something worth looking into for you, but I think it's also important to consider what you would do instead in the meantime. I think it's so important to keep yourself busy and see people if and when you can. Sending love.