Newbies can also get discouraged if they invest in BTC at the wrong time. I think newbies should divide their capital into four parts an invest one part in the beginning. When the price of Bitcoin falls, the second investment can be made with a reasonable difference from the price of the first. therefore it is important to know about the investment percentage as well as the right strategy and right timing.
Yeah you're correct, actually these your explanation reminds me of DCA strategy which works almost as the way you explained it, because a Newbies may not really understand the basis, concept and fundamentals of Bitcoin as such over investing on Bitcoin were as they could ran out of funds but with the help of DCA strategy it will help on risk management and structure the psychology of a beginner to invest slowly but consistently accumulating Bitcoin with a plan to open a reserve funds account were as if any needs arise the reserve funds will cover for it, so this is actually the best method for newbies to use.