Thanks, Sci! Great to hear from you!
I was recently reading two rather different books, but they seemed to connect interestingly - One was Michtav M'eliyahu, from R' Dessler, and the other was Addictive Thinking, by Dr. Twerski.
R' Dessler was discussing how, when we start to think about how difficult a nisayon is, the yetzer hora has already put one over us. once we start thinking about how difficult a test is, the more we focus on it, the harder it becomes, and the less we're able to beat it.
Dr. Twerski was discussing how many addicts develop morbid thoughts, and as they start to get clean, become anxious. They feel impending disaster, and have a feeling that the good things just can't last.
We have to remind ourselves that it just isn't true. We can be clean, we can have a good life, and we can be happy!