As you learn magic, you should not look up magic tricks, because one, the secrets are not suppose to be revealed, and most of all the people doing the videos are not very professional, such as if you were to look up how to do a cool magic trick, you can till there done by people who likely have not took a magic class, and learned the real way how to do it and perform it properly. Another reason why not to look up magic tricks is because it's like cheating. If you look up magic tricks, though that may be how the work but, that is very simalar to cheating on a test or cheating something. Cheating in any form is not ok, I know it can be tempting, but just don't guys, trust me.
The whole idea of magic is basically to entertain people, impress people but, if the secret of magic keeps spreading then whats the fun in magic anymore, you already know the tricks? Once you get use to something it doesn't look as cool, such as maybe if your a gymnast and once you learned and got use to doing a back flip and have seen others, back flips may not look as cool. Plus to tell you the truth the people who are making tutorials on how to do magic should not have made those videos in the first place.