Uploading your videos to YouTube is pretty easy and straightforwards.
It can be confusing sometimes if you record a video on your phone, then try to get it to your computer, then try to upload it, but there are different ways you can upload!
You can upload from your phone, a laptop/computer, and even a tablet or other device you might use frequently.
Below are a couple great tutorials for walking you through how to upload your videos to YouTube on either a phone or laptop/computer.
How to Upload from Your Phone
How to Upload from a Laptop/Computer