Hey Rachel!
If you send over the link to the youtube video you're referring to, I can advise on what Flo was using there ๐
In regarding to your 'clock' trigger, you can use a 'timer' trigger, which can run based on recurring schedules or specific times!
And ofcourse, feel free to head over to docs.lindy.ai where we have information on loops and any other Lindy how-to's (plus we're available here!)