How would I make an animation sequence?

How would I learn to make an animation sequence. I want to learn how to actually make the sequences and what are tracks and curves. If anyone has a tutorial, please link it. If not please explain. Thanks!

Do you want to make a skeletal mesh animation where the character moves its bones or a more general thing where different actors in a level are moving around and the camera moves etc. ?

Yes, where the skeletal mesh moves it’s bones.

There is a way to do it in Unreal but I only have tried doing it from a program like Maya or Blender and then exporting the mesh and its animations into Unreal.

You can find video tutorials for both ways on youtube. Look up keywords like
Skeletal mesh animation, blender model rigging, etc. Character mesh blender to unreal. Etc.