How do I install SNES ROM hacks to my SNES? I only see tutorials for emulator and NES/SNES Classic. Can somebody please help me? Thank you! :)

The SNES doesn't have any onboard storage, so "installing" isn't really a concept at play.

Once you've dumped your original ROM and patched it, your next steps are putting the resultant ROM on a cart. Your options are:

• Writing to a dedicated board. This is a nice option if you have a fairly high degree of certainty that you will want this hack to be ready on hand at all times. Lots of good information for this exists; https://thepoorstudenthobbyist.com/2017/09/14/how-to-make-a-snes-reproduction-cartridge/ is high quality at a glance.
• Using a flash cart. This is the preferable option for when you're developing homebrew software and are likely to be testing iterations. Krikzz (https://krikzz.com/) is excellent quality.

Okay so you should probably hook up your controller to your emulator and play it on an emulator right?