Don't depend on this. It only shows the general trend in which bitcoin is at the moment.
During this recent bull run it was showing extreme greed a couple times and the price went up regardless, so the fact that it's showing extreme fear doesn't mean that it can't go lower.

A small recovery is what traders call a relief rally and it doesn't mean a trend reversal. We haven't even hit the price we were at before the big drop which is 42000.