That depends?
If you had porcelain veneers, then your teeth were probably prepared or shaped, drilling off some of your teeth, so that the porcelain that went over the top did not make your tooth appear "too think" and unnatural. However, if you had a "no prep" porcelain veneer, which is done less than 1% of the time, then the veneer could be removed and tooth underneath should look almost the same. If you had composite plastic veneers, usually less preparation is done as well, and those might be able to removed to get you back to the way you were.
Saying all that, I think it is unwise to do this. You will most likely be disappointed even more by the way they look with the veneer or bonding removed. Your teeth, unprotected with a cover of porcelain or plastic, would more than likely be more sensitive and prone to cavities.
My suggestion is to forget the thought about trying to go back to just the way you were before, but find a cosmetic dentist who can and will make you porcelain veneers that you will not only like, but truly love! Just because you had a bad experience with one dentist and the way he did them does not mean you won't have a fantastic experience with an exceptional cosmetic dentist, one who has years of experience in the area of cosmetic dentistry and relates and communicates well with you.
At the web link below you will see examples of patients who were not at all pleased with their original veneers, but after retreating them were very happy.