For the Flash to vent maybe he can become a Flash related Villain like Savitar, The Reverse Flash, etc... Another possiblity is a Villain or unstable character from a different Franchise like Green Goblin, Venom, Loki, etc...
Question author are you planning on having him go into the music industry and retreating kiss Jon Bon Jovi and a few others it’ll be interesting if you did
did sister’s bride dropped bringing culture to a different world to tell us about how their dungeons were more popular, find out on the next episode of DBZ
The author keeps hinting that the Flash looks up to Batman. Does that mean his secondary personality that lets him rain his pain down on the Joker is... Robin?
Remember this is a 'secondary' personality, one that's not a 'super hero'. Secondary = sidekick? And I'd swear Robin had no powers.