In the last 50 years,on average the June/september/october are the worst months. And are very bearish.
bitcoin was created 9 years ago not 50 and what happens in other markets (stocks for example) has nothing to do with bitcoin. they may have certain patterns and do certain things in certain seasons but not bitcoin.
WHen bitcoin fell down below 6500 i confirmed that we may be following seasonal pattern, which means we could see a pump around july/august. But the lowest all time bitcoin will be around september/october.
the problem with these patterns is that there is a lot of them and most of them contradict each other. for example there was a lot of patterns suggesting we will see a rise in February, that didn't happen. then again in April and that didn't happen either. and again we have June patterns that suggest we should have seen a rise but that didn't happen either.
you see for every pattern that comes true there is another that didn't.