i want to become a self thaught concept artist.

i'm 24 already so i feel like i don't have much time left. i am financially stable for the next 2 years, after that, i'm on my own.

how realistic is it for me to get to a respectable level, and make sufficient income in 2 years from now? i figure i could start doing "some" freelance work in about 1 year, and build a client base towards the 2 year mark. i'm not a complete art noob either, and i believe i'm a fast learner.

link to my da (not complete trash, is it?)
http://meronfeisu.deviantart.com/gallery/

this is the only chance at life i have left guys... if this fails, i have nothing. (could always still become a photographer though bc as we all know that takes zero skill)

how close to jaime jones & craig mullins can i get in 2 years from my starting point?