Everyone has a pattern that they are using to invest, and everyone does what works best for them. If I were to tell anybody to invest in bitcoin, I wouldn’t just tell them to invest once, especially if the person is very new to bitcoin investment and is scared to invest. I would just tell them they should split their money and invest in parts.
 
Let me make an example. if you have $100 in your wallet and you want to invest, you can just decide to divide the $100 into parts, with each part being $25. You can decide to use $25 to invest every week or every two weeks, it depends on you. Just give yourself an amount to be invested and the time interval for your investment.