thats maybe nice advice for get big profit, but just remember dont invest more btc when its near halving like 2013 ago, when btc price reached $1200 and then dropped until $300
first of all price went to a little lower than $1200 and fell to $170 after that but you are forgetting that it started a lot lower than the bottom and rose to the ATH so this time even if there is a bubble and a fall after, the fall will only be to 500-600 not any lower.