I've been practicing running some games, but don't have any good setup to record.

Is there a way I should record my runs?

I mainly play switch, but any advice is welcome.

point your phone at the tv

I've tried that, but my camera sucks, you can't tell what is happening.

then you need to get a better camera or invest in a capture card (assuming you have a pc/laptop to use it on)

how to record timer on mobile