already forgot what the block looks like

me too..6 days did not found a block.
is it bcoz of the pool changing or add more routes?

Bcoz (sic) of luck, see
https://kano.is/index.php?k=poissonIts not the number of days that matter, its the CDF and Diff% that matter, last time we had an over 300%'er was nearly a month ago, probability is that we can expect to get one like this ever 20 blocks or so.