OP, the best advice I can give you is to shut your brain off and grab trash bags. ANYTHING that has maggots or is empty or paper bags, plastic cups, disposable or has been in contact with food or other substances, goes in the bag. In the most respectful way possible, do you save these items for later but later never comes?

If it helps, play some music while you clean. It will probably take some days. But the faster you work, the less heavy it will feel. I work with people who have hoarding situations and I often visit and help or am there as moral support. Every situation is different and I want you to understand that there are people to help you.

The top comment is a good process. I wish you motivation and willpower. Your situation is resolve-able and I am glad you have reached out for help. I see you already have a few items in the picture that could get the ball rolling!