good lord why are galleries so hard to code

in a perfect world each image would have captions but idfk how javascript works and this thing has given me enough trouble already.
here's the tutorial i used for this gallery. the forward/backwards arrows are really small on the right side of the image. idk why.
this gallery is organized from newest to oldest and may be missing pieces! follow me on tumblr at junkbrainz for more!

HEY WARNING. some of these images include blood and eyestrain!!!!!!!!