You answer:

I suggest you to start with the kitchen, I mean to me the kitchen is the heart of a house, I had this problem so I started redesigning my kitchen, it had useless cabinets, doors that wouldn't open, I suggest you to hire an expert for that, I found an online service that helped me redesign my kitchen and get good quality cabinets, if you are interested check them at this link https://kitchensearch.com/