Take your time and practice the fundamentals with gifs and animation loops like your android 18 and Judie hopps animation. Animating to outside audio ( such as your twilight wedgie animation and the dozen of other animation set to musical and podcast audio) could help you get into the rhythm of the audio when animating. And some animatics wouldn't hurt either, helps pace and structure the animation. Just take little steps to better improve your 3d.
Edit: I mean do like 10sec animations to get the basics down. Be sure to look at the 12 principals of animation, as the level of appeal you have in 3d is difficult to get on par with 2d. https://youtube.com/playlist?list=PL-bOh8btec4CXd2ya1NmSKpi92U_l6ZJd
Be sure to look a t blue skull and other 3d nsfw animators for study.