Hi! I’m an amateur and must have used my pan incorrectly, and would like to ask some directions to fix my specific case.

Once after cooking with it I washed it with hot water, dried it, and put it on the oven to make sure its completely dry. I added some oil too. Unfortunatelly I forgot about it, and came back when it was already smoking, and having that huge spot on the right side of the image. The pan wasn’t completely on a flat surface, so most of the oil flowed on the right side. Also a lump of oil(?) formed at the bottom of the spot, which I could remove with hot water, and non-metal scrubber.

I tried searching online for a solution, but I’m not 100% sure what this exact case is, and which solution to try.

How could I fix my pan? Thans in advance!