Thiamine and L-Theanine. How much do you take, and how often?

Thiamine and L-Theanine. How much do you take, and how often? I just got some of both. Wondering how much to take and when. I’m under the impression that we should take Thiamine daily, but L-Theanine only before stressful situations. Is this wrong? Should L-Theanine also be taken daily to see results? Cheers guys