Hasta La Motion!

I am a newbie in this helpful forum.
I am 22 and have an IT support background. I have always been amazed by the vfx in movies and video games. (I like all those fantasy landscapes, like in Pirates of caribbean, Lord of the Rings,…)
I would like to change of field and work in the vfx one.

I am a "very very bad drawer", and I do not know anything concerning lights, shadows,… but am hard-worker if I know where to go.

Right now I have been learning photoshop for a few days with DVD training that I borrowed (I don’t if it is the best thing to do).
And then I am thinking to learn after effects (still with dvd training).

I read several posts and threads, especially Faridzareh’s one (give me hope), but am very confused with all those terms that see everywhere(roto, TD, cg,…). And then all those programs: Nuke, Combustion, boujou, houdini,….

Should I keep going with photoshop and then after effects or should I start with in a different manner?

Congrats and best of luck to all of you!

Manukkain