Questions for you brilliant folks

[MendozatheJEW]

Hey guys, I am new to this forum stuff. I have been looking around for the best forum to ask questions on for months now, and the group here seems like the most knowledgeable, smart and unbiased group of people I have met. So let me get to the point, I was diagnosed with depression and anxiety, and while antidepressants barely did anything, with Adderall I was feeling the way I am sure all of you feel. This amazing sense of freedom, concentration and peace. I don't care what people tell me about the word "addiction" because the truth is that I am much more stable on it then off it, I and I am sure many of you guys are the polar opposite of an addict, we get more work done, feel and sleep better, and all around feel like smarter, more productive people. So anyway, I began adderall about a year and a half ago, and was prescribed it. I had gone on and off of it since then, with different psychopharms thinking it was necessary/un necessary, etc.
So here are my questions:
1.) I have found that my tolerance has gone up drastically, what started as 20mg XR that would get me going, I now need to crush up 40mg just to get the same feeling, if any. I have been back on it for only a month, after a three month break. What do you think is the best way to lower your tolerance again?
2.) Has anyone heard of any natural substances? I heard about magnesium working? Also anything with baking soda increasing effects?
3.) If I need to take a break, how long should it be for?
4.) Has anyone had the desire to stay up all night doing work or just reading? Like it is more enjoyeable?
5.) I have, at times, taken 2XR's crushed every 6 hours, for like 36 hours, till I sleep the next night, can this effect my tolerance?
6.) Do I have to double the dosage of XR to get the same effect as when it is crushed up? Ex. if I need two crushed XR's, is that the same as taking 40mg XR and having longer effects?
7.) If I take it with Temazepam, I find it seems to smooth out the edges, almost like the concentration is better with it. Can this be nullifying the effects?
8.) Can I lower my tolerance by taking just one XR each day for awhile, or should I stop all together?
9.) I am taking Lamictal too, does this interfere with the effectiveness of the drug? Do you know of any depression meds that help to increase the effectiveness of Adderall?

Any and all info would be greatly appreciated, even if it for me to stop it for a little while. I don't wanna have to up it any more than I am, or go to extreme measures to feel the concentration, motivation, etc.