Aaaaanyway, how to start over? It kinda depends on what sort of base your dead character left behind and do you have the body?
I once lost my base and had to move on to a new location. Had a few trinkets and nice things left. Put them in a box and went off with my canoe to explore the world. I've always enjoyed that but maybe you don't, so I don't know if taking a week or so to just wander around would be helpful to you. But I've found that a new character can do a good bit of gluttony and studying on the fly. Set up camp for a day here and there to make a few of the smaller crafting structures and make spinning tops and whatnot; look for the perfect new base location. Keep going until you find a place that inspires you.
If you have a base and want to keep it, and you can manage to get your dead body to it, and can bury it decently, you can recover a good bit of your old skills from prayers each day and that should help you feel better about your character starting over.
If you have a base and really are starting your character over from scratch, I'd recommend just think about which things you like doing best and try to spend some time just doing those or working toward being able to do them and forgetting about all the things you Have to do. Whenever I got bored with gardening and cooking, which were some of my least favorite things, I'd just leave my base and expand my map of the area near my base and do some foraging, two of the things I always enjoyed.