It depends. 24/7 support is essential to some investors, while others may be completely fine using online chat during regular market hours or receiving an email back within one business day. That said, most investors neglect to think about a market crisis like a flash crash. In our experience, it certainly doesn't hurt to have reliable customer service available for whenever the need may arise.
What would make me sell: Sometimes there are good reasons to split up. For this part of your journal, compose an investing prenup that spells out what would drive you to sell the stock. We’re not talking about stock price movement, especially not short term, but fundamental changes to the business that affect its ability to grow over the long term. Some examples: The company loses a major customer, the CEO’s successor starts taking the business in a different direction, a major viable competitor emerges, or your investing thesis doesn’t pan out after a reasonable period of time.