Skateboarding provided me with the exact same escape that it does for you. Among other things, it allowed me to escape the mental and physical abuse I suffered as a result of my parent's involvement with the Jehovah's Witnesses. I did do lots of street skating, although it was quite primitive in comparison to the street skating I see the kids doing now. Skateboards were our primary transportation around town, as well as a vehicle for riding ramps and pools.
I'm really impressed with the courage you've exhibited at a young age. I was born and raised in the lie that calls itself "the truth" as well. I stopped my regular attendance at the age of 14, and was completely out of it by the time I was 15. The elders actually threatened me that if I didn't stop associating with my best friend (who was also the son of Witness parents), they would disassociate me (I was never baptized and never had any interest in becoming baptized). I laughed in their faces, and they never carried out their threats. More than 20 years later, that friend is still my best friend, and I'm very very happy that I didn't listen to the elders. They were unworthy of my respect, and they are unworthy of your respect as well.