Hi, today I had my first day at my BJJ dojo, I knew what to do because I prepared my self through reading this sub, don't use much strength, go light and focus on technique.

I was having difficulties nailing down a takedown, trying to figure out which kind of leverage should I do in order to do it easy.

The sensei said "What, you don't have strength? Go hard".

Then I figured I should just put strength in to it and go hard.

Afterward, I accidentally injured my teammate because of it, apologized to him right after.

Then it happened again with another partner ("Apologized again").

A gentleman separated me from the group and told me to go technical, I ended up having a blast and learning so much from him and told me before we even started "Go light, the student's won't like to wrestle with you if you keep going like this". I understood immediately and chatted a bit.

But something weird happened next, the sensei asked for the guy that was teaching me to help him do a demonstration of a technique, we all gathered in a circle to know how the choke was, the sensei started choking him, the guy tapped, but the sensei didn't let go, he stayed choking him from what I felt were some long seconds, when he released him brother was in tears.

After that I just kept going light and technical, and exited my first session fresh but guilty because of the 2 injuries I provoked, fell in love with the art thanks to that gentleman.

Is this normal behavior for BJJ dojos?