I have been on 10 mg. of valium for 30 years and about 6 years ago, the psychaitrist told me to take 30 mg. What do I do, can I do it myself with a guide from a book or doctor, or what? I took off 5 mg. and it was no problem, but I know that as you go down, you have trouble or whatever. In fact, I went to 20 mg. about 5 months ago without any problem, but when back to 30. Now I am on 25 mg.