Large teeth, gaps, 22 yrs, overjet - can I get composite veneers? (Photos)

I already have large teeth and I'm aware my teeth have large gaps and would make my teeth appear even larger. I was bulimic for a lot of my teenage years and teeth have suffered a lot. My teeth have recently started chipping and I had weak enamel even as a child. I previously had braces but had to had them removed because my family could not afford them. I do not want braces again at 22 and my teeth cannot be whitened. interested in extending my canines. Will it work with my teeth?