Merging two animations (EASY QUESTION, please HELP)

Hello! I have a problem. I downloaded Blender 2 days ago and still do not know many things. Here I tried to animate the walking and falling down. So the character should fall right after walking animation ends at the same place. But no matter what, I could not find anything that culd help me.
Could you please give me help and describe how I can merge this two animations? My problem is that right after walking animation ends, falling animation starts at the initial place where origin is located like it teleports there.

As a new Blender User, you are running before you can walk. You at least need the basics fully understood before starting something like this… Here is the simplest video I found that covers your problem…
They are for Mixamo Animations but that just means they were downloaded instead of being created by keyframe…the process is the same, regardless.

Start the video at about 2:30 where he shows combining just 2 animations. So interpretation will be required from you to apply this to your animations…
Good Luck.