Is your tablet pressure sensitive?

its a touch screen computer and touch sensitive

I've never used Blender with a touch screen computer. It sounds like it could be a substitute for a tablet though. Test it and let us know!

Used it in sculpting and it did just the thing, the only downside is that you have to clean it to get the best effect and sometimes your fingers aren't as precise and may mess the strength slider sculpt mode or something else

Can you tell me the skills I need to learn to create a animation something that is realistic in visuals? Thanks

Creating realistic animations, like Gollum in Lord of the Rings for example, requires expert-level skills. Gollum had dozens of world-class CG artists working together to achieve him.

So, that's sculpting? Or is chi a category on its own, because I am going to learn in in 2 years time in High education