Has L-theanine genuinely helped your anxiety or stress?

I’ve been experimenting with L-theanine to help with mental spirals and I’m trying to figure out if the effects I feel are real or placebo.

I wanted to hear other people’s experience with it.

Did it seem to help at all? Social anxiety, work stress, physical tension, brain fog?

Also curious what dose felt noticeable, and whether you used it alone or with anything else.