There are tons of great resources for learning VFX on our tutorials page, here: https://www.actionvfx.com/blog/tutorials/category
You can also find some great educational info on our friend's YouTube channels below.
-HitFilm (Free VFX/Editing Software) - https://www.youtube.com/user/FXhomeHitFilm
-Surfaced Studio - https://www.youtube.com/user/SurfacedStudio
-Film Learnin' - https://www.youtube.com/user/lonearcherfilms