I keep seeing players take screen recordings of screen recordings, so here's a short tutorial on how to trim video before uploading:
1. Download Handbrake here:
https://handbrake.fr/2. Open your video file
3. Select "Range: Seconds"
4. Enter the time range you'd like to trim to
5. (Optional) Change your Dimensions/Video Encoder settings to reduce file size further. I recommend dropping FPS to 30-60 and resolution no lower than 720p - note that admins will prefer higher resolution video as it captures more details and lowering FPS may remove certain frames that are evidential