I created one map previously in Paint...I thought it turned out ok but was lost when I got rid of my old laptop and didn't save it. Looking to start again with GIMP. But I want the size to be 7000x3778 and to be able to paint each pixel individually. Gimp seems to limit me to 3x3 at a minimum? looks like I already need help. My Paint map was 9600x5400 and worked just fine.

Hope to hear from someone thanks