The video is on your YouTube channel under Past Live Streams, but it won't appear under Uploads until YouTube finishes processing the full video (this usually takes 24 hours). You can find your video from your Past Streams, by clicking the 3 dots, then click View on YouTube.
You can also find your live stream on your YouTube channel directly.
1. Head to your YouTube channel and click Live.
2. Your past stream will be listed under this tab. You can customize your YouTube channel to include your live stream on the first page of your channel. Here's how.