Setting to automatically send email?

Question

Email

Hello, tell me how this can be implemented on WooCoomerce

- after payment in automatic mode, an email should be sent with access to the courses (they will be on YouTube and we just send an html email with links).
– make a newsletter (after filling out an application for text access, an html letter with the first video lesson is automatically sent to the mail). After X days, the second letter is sent, and so on (the list of letters and the order of their sending is configured in the admin panel). Also in the admin panel it is desirable to make it possible to send letters in manual mode.