I'm feeling the urge to bully dark skinned kids at my school because I was bullied also for having darker skin.
Are you serious, is that really the only reason you're going to bully them?
Yes, I want to get revenge.
I understand that you are still hurt by how others treated you, but you know better than anyone that it is wrong to bully people, especially for something that they can't change like their skin color. It sounds like you need to work through some residual trauma from the bullying of your past, instead of trying to get revenge by perpetuating the bad feelings.
Explain to me.
What people have done to you in the past shouldn't be how you view all the people of that skin type. This is borderline racist and not socially acceptable.