Video editing is frequently priced per finished minute of output rather than strictly hourly, especially for recurring clients (e.g., a YouTuber who publishes weekly). If you're quoting per-minute, it's worth timing yourself on a few projects first to figure out your actual editing-hours-per-finished-minute ratio for that client's style of content, it varies enormously between a simple talking-head video and a heavily edited multi-camera piece with motion graphics.
A rate only matters if it actually gets collected. Once you've picked a number, send a professional invoice that states your terms clearly, and consider a simple contract for anything beyond a quick one-off, it's the easiest way to avoid scope creep eating into that hourly number. If you want to see how your rate translates into real take-home pay after taxes and time off, try the freelance take-home pay calculator.