Begin your next chapter. The best way to prove your worth is to move on to your next accomplishment. Let your future success speak for itself.
Don't burn any bridges. It's a small world out there. The person you trashed at your last company could easily show up at another one with job openings.
Swallow hard if you must. An exit interview isn't an excuse to air your long-held grievances. Leave on good terms. Remember that
in business it seldom matters who is right. What matters more is who maintains dignity and respect.