Obviously if you don't think negative thoughts you will great. I tried dropping negative judgmental words and I got so high I couldn't drive. It's all in the mind anyway. They now say that prescription drugs won't even work if you don't believe in them.
My chemistry teacher said that the body, you, can synthesize any chemical. I learned that a sugar pill worked as good as the anti-depressant that I was on and like so much.
For a high and a whole new life, you pick what words you think are negative and judgmental, drop them for say positive accurate descriptive words and see what happens. It takes time for you to really get good at it, but you can gain control of you mind and body. It's well worth it. I will let it go at that as you just have to try it. I'll tell you though, I'll never go back to the old way of thinking, if I can help it. It's part of the mind shift that everyone is talking about now. It's necessary for the ability you get to handle complex information subconscously. A lot of information all at once, isn't it? Sorry