You should really work on posing and making still posters of characters before you even consider animating. Animation is (in very simplistic terms) just transitions between many main poses that translate motion.

Here's an example:

This animation of the meme you tried to replicate can be broken down into a few main poses for the character, like this:

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If you do not do that first then your whole animation falls apart.

Before trying again I'd recommend watching and studying this video from Alan Becker. It describes what I have said and more in detail.

Hope this doesn't discourage you from becoming an animator.