He kept a tight hold on his temper; this was all in the past.

He took a tight hold on his temper and voice.

Since you were little, I could always count on your temper.

She took a very deep breath and got a firm grip on her temper.

John had put a check on his temper as well.

She had to keep a tight lid on her temper.

Was he supposed to blame that one on his temper, too?

He needed a moment to get a firm grip on his temper.

I suggest you use that time to work on your temper.

It was good advice, and I tried to get a handle on my temper.