If all you want is to send out appointment reminders, then you could use an email scheduler like LetterMeLater. Here's a link to the site https://lettermelater.com/. Source: about 1 year ago

Seems like a solid strategy, give it a try on e.g., https://bitcoinflip.app [and learn that most such strategies will fail to give you any gains]. Source: almost 2 years ago

Here is one of the Bitcoin trading simulators (just took the first google result): https://bitcoinflip.app/ try to time the market and observe that you might be lucky a couple of times until - well, until you aren't. :). Source: almost 2 years ago