Weeping Cherry lets a light blush come to her cheeks.
So, with the warning that it really does sound self-indulgent as a premise:
When I was little, I used to dream about having superpowers. Specifically, the ability to stop time, not age or require sustenance, and control temperature, because being able to stop time meant being able to do anything as long as you were patient enough. And controlling temperature being a required secondary superpower to survive stopping time around you (I was a very nerdy physics child).
And I put a lot of thought into what I would do if I got superpowers like that, and why. The story gradually got deeper and more complicated as I got older and started encountering problems that couldn't be solved by stopping time, but the fantasy still really appealed to me.
So I read a story about a girl named Brenda Banner who gets visited by a mysterious hovering orb that offers to give her tremendous power and send her to a world that runs on D&D rules (D&D is a table top roleplaying game, I don't know if you're familiar), and I liked it, which is what made me realize other people might want to read my fantasy too. So I decided to take my fantasy and adapt it by making it take place in a different superhero world called Worm. The original Worm story is noted for being very grimdark -- everything always goes wrong for the protagonists until the very last moment. So putting my fantasy character who I knew could do anything there felt like making it 'fair', and would provide enough conflict that the story would be interesting. I later learned that probably wasn't necessary, because a lot of the subsequent sequel stories took place in less dangerous places, but whatever.
So the story is about a thinly-veiled self-insert character with the aforementioned time powers getting dropped into this dangerous world. And the way she is introduced gets her off on the wrong foot with the heroes, so she retreats and tries to fix things herself, but they keep failing for reasons that look like coincidences. Eventually she learns that a precognitive, who can see everything she would do when time stops, is manipulating her to keep her from succeeding. What's worse, they're doing so from an alternate earth, so she can't always get to them.
Eventually, she engineers a confrontation where the precog will have to be to disrupt her plan, and repeatedly freezes time and searches the area until she manages to slip into the alternate earth. And then she spends a long time (or no time at all, rather) looking through all the documents on the alternate earth discovering why the precog is working against her, and teams up with the precog and their team to take out the real threat that has been plotting the end of the world this whole time.
And when the story ends, she's able to go be a hero like she was on Earth, and eventually find a way to open a portal back to her Earth and go home.