Product review (5 stars): Not as hard as it seems
Here are the main things your wondering!

Can I do this?? Can you follow basic directions and unscrew things? Then yes you can do this! Here is a step by step video on how to take it apart on youtube. I watched the video and was still scared but it ended up being MUCH easier than it looked. All 3 parts are all together. Just unscrew and attach the new parts.

What do I need?? Screwdriver, flashlight, needle nose pliers, and vacuum. There will be HUGE amounts of lint in there.

Did it work?? YES! My dryer was not heating. I didn't want to pay repair people 10x the cost so I decided to try this first and I am very glad I did. Dryer fixed under $30! I figured why not replace all 3 parts instead of just the element just in case one of the others was breaking/broken.

Side note! After I installed everything I turned it on and YES it was heating but there was an odor. It smells kind of like that smell when you turn the heat on for the first time in months. It went away after a few minutes. I googled it... it is normal as long as it goes away. It is just the new element.

Good luck and I hope it works for you like it did for me!