Is it normal i constantly think of revenge on my enemies?

The fact that you consistently think of yourself as a victim and blame everyone else for your situation, shows that you really need some help.
Most adults actually grow up and move on. You haven't; you are stuck in your past and it's killing your future. Revenge won't help you at all. Forgiveness won't help you or them. The only intelligent thing to do is move forward and show them all that they can't win; you are better than that. And that means getting off your ass and doing something positive for yourself.

Normal but not healthy: this is harming you and not the people who harmed you. Lux's advice is spot on

Well, there are several ways to ruin your life and that's one of the many you will encounter. Try to control it wisely, without the need of alcohol, drugs or pharmaceuticals. Consult a psychologist or a relative, a friend you wanna vent to before acting on chemical unbalances.

Everybody want's revenge. Everybody has also thought about how they would want to do it. If anybody messes with you be firm, talk loud, look strait at them, stomp anything out early and don't be afraid to call the cops. Get the I'm a victim thing out of your head, that will end in one of two ways, you become the new aggressor and pass it on, or you won't be able to stand up for yourself. Only Highschoolrs and drunks get in fights over name calling, keep that in mind two.

All of that aside, that's all in the past. Forget those people and start living your life. Have you ever heard of a scientist saying "My work is amazing but it will never make up for being bullied for being a nerd in high school." No you don't they move on and live fulfilling lives.

use this anger , adrenaline and emotion to motivate you to succeed and overcome their actions . If you give into these urges , you didn't win anything really .. they still own and control you at that point .

Completely normal, I wish you luck.

Don't be a victim. I think you're in good enough condition to cope and move on. Being happy now, as the person you truly are, is that greatest revenge you could ever have. If vultures is what they are, there time is coming. Your pain has deepened you. Don't let it destroy you.

I'm not cool enough to have enemies :(

:D