What kind of disease/insect could this be?!

Noticed some holes and yellowish things that look like burns but can't be because the hottest my closet's gotten lately is about 79F. Some really big parts of leaves are missing too.

If you cannot find a culprit on the plant anywhere then I would check during the dark period, right after lights out is a good time, for moths.

have a good ead threw this informative guide on bugs.

>>> https://www.rollitup.org/bugs/335046-grizzlys-guide-pulverizing-pests.html <<<

Because them bite marks are similar to a few different bugs shown on grizzlys guide to bugs.