This is the problem people have. They will not not want to buy when the price is low but later want to buy when the price is high. The safest coin to buy right now is bitcoin. If you buy it, it is better not to be checking your wallet balance in dollars. Just leave the coin and be expecting bitcoin to get to $100000. Because the price is falling, some people will panic and sell just like what happened yesterday. Do not do that. Do not sell if you buy even now.
[ this means that buying at the time when the price is on the increase is not wisdom]