Selling furniture and her stuff of my dead grandmother.

Hi,

My grandmother passed away in 2022. After paying for over 6 months for her storage unit I moved her stuff into my shipping container to go through for family and decide what to sell since the rest of the family didn't want anything and didn't want to be responsible for her storage unit.

I have held 3 garage sales over the year. I am keeping all the profit from the goods being sold. I have received all this stuff free and my grandparents aren't around to tell me original price. Original price to me was free. During these garage sales I also sold alot of my items because I am at a point in my life I am trying to let go of material objects. I have made over 6000 dollars. Some items I wrote down and smaller items like clothing I didn't itemize or kitchen stuff. How would I report this on my tax return. I still have half a shipping container to go.