Hitting plateaus

Hey yall! I haven't really been throwing for the past year because of school and whatnot. At the same time, at the beginning of this "not throwing phase", I noticed myself really plateauing in terms of tricks and combos, and nothing really motivated me to throw either. Currently starting to throw a bit more occasionally, but I just throw the same combos I did before. I am basically stuck in candy rain, spirit bomb, basic zontals and hooks and speed combo territory.

So my question is, how do you keep improving your trickset? How did you get over plateaus like this?