I currently have approx. 1,47‰ and I dont feel much

How can you see the tolerance you have built up, I want to know if all these online per thousand (I am translating this via google) calculators are even on point, because I think my sex and weight cannot predict a tolerance I have currently, so how would you meausure your tolerance (my question is to all the drugs not just alcohol) but how could you measure your tolerance. I would like to know how to tell how much the tolerance has risen and how that would work. I need that knowledge to “close” the bridges between the different drugs o I could know some layout, how I could structure my consumption, at least enough to stay disconnected from reality so I wont kill myself soon™ .