during a speed-run video i did multiple levels ones in one video, if i am submitting them should i just go to level to level or is their an easier way
If the board allows it, you can submit a link with a timestap so the video automatically starts at the right point. For example: youtube/qW7_3d_NchA?t=15 (The =15) so it starts at 15 seconds in the video.
I'd cut the video down to several videos, one for each Level. that way the person who has to go through your submissions doesn't have to scroll through minutes of video to get the part s/he actually needs for the verification.
( @Seydie funnily enough I'm actually removing those from the submissions I get by default because ppl never put it at the correct spot.)
Make multiple videos if you can. It takes a bit more of your time, but it's far better for many reasons.
Consider it nice and easy practice for video editing.
Shotcut, a video editor, is easy enough to use and free.