Could anyone help me with some simple modeling and animations

Blender’s workflow is really easy, it’s just you gotta be careful about unit scaling, bone axes and export options. I would really recommend Blender, it’s free. You can buy 3rd party animations then model and rig the character on your own. It will look original enough and would be easier than making all of the animations on your own. Animation and Skeleton retargeting from blender to ue4 -> https://youtu.be/r986GDnpvXw