the number of times we see FUD about bitcoin has always been a very good indication of when we are in the cycle. FUD has always increased at the start of the bull runs when the price is setting a new ATH every month we see FUD also set a new ATH every month.
funny thing that i found last time was that when we were close to the peak there was very little FUD. for example last month of 2017 when price went up 100% everyone was talking about how price will reach $100k and there were little to no talk of bitcoin dying and stuff like this!