Origami
For those who have tried origami its not that easy to pick up right away, unless your some prodigy child or something. Its actually quite complex when it comes to making the desired figure. Especially when making the folds. You run into a lot of problems like uneven folds, tears, having the wrong sized paper, or your paper getting wet. Through and through not every origami figure will turn out as expected. I tried making a origami rhino it was an utter failure. So keep practicing and eventually you'll get pretty good at it. Here are some pictures of other people who share in my origami short comings.