Welcome to Bitcoin, yes it already goes up and then crashes...remember when it went up from $.18 to $.65 ...then crashed down to $.20...then another time it went all the way to $120 then crashed down to $28...then it went all the way to $1200 and then crashed down to $200...etc...
Why you expecting the crash bro. Sure we will find the best growth in the price chart. We found the price going up from the past one enormously and it is being settled around the 12k plus in the chart now.
To find the crash in the chart, this is not a centralized currency or being control by the whale to make the changes by the share holders. This is how economical whales changes the share value in the chart. Here bitcoin is not controlled by anyone dude.