I watch your cifeos of after effects all time its very helpful but i cant get advanced level in my mind. So i want to know more about after effects.
I remember when I started learning After Effects and VFX. At the start, it was really difficult and everything I made without the help of a tutorial looked like garbage. But after a few months of practice, I remember that something just clicked for me and I was able to make my own stuff.
I think the most important thing you can do is watch tutorials that not only explain how to do something but also why. Not just "put this effect on this layer", but also "this is why you need to put this effect on this layer". Learning the why's is essential if you want to get to an advanced level.