Will I benefit from having braces again? (photo)

I had braces for 2 years, and I'm not satisfied with the results. My orthodontist had asked me if I was happy after taking my braces off, but I was so relieved to have them finally taken off I just agreed. However, I regret not explaining my concerns with him. I feel as if my front teeth are slanted and because of this it ruins my smile and makes it appear as if I have slanted lips too. In the picture, I am looking straight ahead. Any suggestions on how I could straighten them?

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