buy first because the price is very low and then if there is an increase you can buy again. the process is needed to get the big one, if there are good steps you can buy more, because in the future the market will return to green and can soar. now you can say a good moment because the price is low and someone says don't buy first and have to wait until the conditions are safe, in my opinion both are very good so what you want is up to you.