re: unfinished projects, if they are hanging over you, just get rid of them. You don't owe 'completion' to anyone.
If they are things you really would like to use in your home, focus on that and just do the work to get them to a useable state. Focus on how much joy you will get from them when they are done, even if you are not enjoying the process.
I threw out an embroidery I was 80% done with to commemorate the birth of my niece (who will be 6 this year!). I just hated the sight of it, it had hung over me for so long. She never knew about it, so it's not like anyone was waiting on it. I got much joy from planning it and starting it. I felt so much better once it was out of the house. No need to make our own lives harder.
I feel like I'm moving onto stage two of Marie Kondoing (I've made that stage up myself, btw). I am starting to replace mediocre things that I needed with things I love. First up is a new pair of work shoes, made in England, which fit perfectly. I hadn't realised how badly my last pair fitted until I swapped in the middle of a work day (I wanted to try them out on carpet for a few hours in a real-life situation before I decided to keep them). How wonderful it is to take a step and feel secure, not like my shoe is going to fall off or slip away from under my foot. The heels were rickety too.
Unfortunately I think I may have been buying all of my shoes one size too big for a few years. Anyway, they feel great.
I am also upgrading items in my wardrobe, but I make my own clothes, so it's not too hard on the budget. I could do with a new work suit though, and even with making it myself, fabric + lining for such an undertaking won't be cheap (though it will be in comparison to buying decent ready-to-wear, I suppose).