Had braces for 2 1/2 years. It's been 4 months since I've taken them off and they're slanted inward/bottom slanting to side.

My orthodontist said it wasn't a big deal/told me that many people have this bite. I did have 4 teeth pulled out (2 on top, 2 on bottom) because my teeth were a little bit crowded before and to apparently avoid the appearance of a protruding mouth. I'm pretty sure because of my teeth extractions my teeth have slanted inward. Not pleased with the results. What are the possible solutions for all these problems?