If you are new to chopping cars this is normal. exept all levels of critisizm in a positive manner. Its not that your chops suck you just have not applied enough skill and practice. Everyone here had to start somewhere. study and read as many tutorials as you can and start with on simple thing until you get it right and then move foward. Good Luck on future chops. 

Have no fear of perfection, You will never achieve it! [Salvador Dali]