and if I got into this situation two-times in a row what’s guaranteeing that it won’t happen again

Absolutely nothing.

The way I like to put it, is that most people are nice, but there are assholes everywhere.

It’s not that everyone is a douche, just that there is nowhere you can go, where there won’t already be some, or where they won’t suddenly show up later.

As such, it’s good to try and learn to deal with them, avoid them, or outlast them.

At my last job, my two first bosses were great, then the third was a nightmare. But he got fired two years in and then the fourth was good again. That job lasted me seven years. 5 out of 7 is not bad.

Overlay that with all your colleagues, and yeah, you’re almost bound to have at least some of them be bad… It’s a numbers game. If most of your colleagues are reasonable, then you’re probably in one the better places to be.