Your YouTube channel can be whatever you want it to be, but ultimately, it acts as a living record of your work. 
And for many, it's representative of hours and hours of work, both on camera and off.
How to download your own YouTube videos

So it's always good to have a backup of your videos by downloading them onto your computer or another storage device to ensure that nothing is lost in the event of a technical glitch.
For the record, you can only download your own YouTube videos with these methods. And there is a limit to the number of times you can download each video through YouTube, per day. 
With that in mind,

Here are the methods you can use to download your YouTube video

There are actually three primary ways to get this done. 
You can use Google Takeout to grab all of your data, including YouTube videos. 
Or you can do it using YouTube itself  on either YouTube Studio (Beta) or Classic.

How to download your own YouTube videos in Studio BetaHere's how to use the Beta-version method:

1. Go to youtube.com and sign in to your account, if necessary.
2. Click your profile photo in the top-right corner of the screen and select "YouTube Studio (beta)."
Click on YouTube Studio (beta).
3. Click the "Videos" tab in the left sidebar.
Select the Videos tab.
4. Hover your cursor over the video you want to download, then click the three dots that appear to the right of the video's name.
Click the three dots when you hover over the video.
5. Click "Download."
How to download your own YouTube videos in Studio Classic
You can also download your videos through the YouTube Studio Classic.

Here's how:

1. Go to youtube.com and sign in to your account, if necessary.
2. Click on your profile picture and then select "YouTube Studio (Beta)."
3. In the bottom-left corner of the screen click "Creator Studio Classic."
Navigate to the classic version of YouTube Studio.
4. Either click into the "Videos" section toward the middle of the screen, or select "Video Manager" in the left sidebar.
Click on Videos or Video Manager.
5. Next to the video you want to download, click the down carrot.
Click on the down arrow next to Edit.
6. Select "Download MP4."
Keep in mind that you won't be able to download your video if it's been removed from YouTube, has a copyright or community guidelines strike against it, uses a pre-approved audio track, or if you've already downloaded it five times within the last 24 hours.