It’s as difficult as you want it to be.
I’m reading this book called “How Bad Do You Want It?” by Matt Fitzgerald right now. While the author is writing about endurance sports, the premise applies to anything: The perception of your effort during a task determines how you perform. So if you think something will be difficult, it will be. If you think getting stronger will be hard, it will be. If you think losing fat will be hard, it will be. If you think getting back to feeling like the old you is impossible, it will be. But what about the flip side? Believing you can get shit done is the first step.