How quickly do you build a xanax tolerance?

Okay so I (F 60kg 170cm idk if it matters or not) tried xanax for the first time. I took one 0.5mg pill around 6pm yesterday and another one at 1am today, I want to use again tomorrow and I want to experiment with gradually higher doses. So I was thinking of taking one and a half 0.5mg pill so 0.75mg in total. Since I’ve already taken two pills on the span of 6 hours do you think my tolerance has already risen and I should just skip to 1mg to experience stronger effects?