I think it all depends on the person really. I can still get stoned easily, but it's just not the same high I used to get when I was a first timer and i've been trying to take breaks to get back to that awesome high. If you smoke often of course you're going to have a high tolerance. Maybe you should take a short break like 2-10 days and see how it goes after? It usually helps a bit. My boyfriend and I went to Florida last summer for 10 days without pot and we came back, smoked some 30s I had and were on the floor lol.