That's normal. Whenever you smoke weed a lot it starts to take more and more to get you high. That's the golden rule with a lot of things. Including pain medication. Yeah just slack off a little. And you will see a big difference. I mean it used to take me 5 tokes and I was stoned out of my mind now it takes me about a joint to achieve the same feeling. Maybe you are feeling so down about weed because of your bad experiences. ex getting in trouble.