Nine affirmations for when you feel stuck — for the flat stretch where nothing is wrong and nothing is moving either.

Being stuck is a strange kind of hard. Nothing has gone wrong, which means there is nothing to fix and nothing to tell people. You are simply in the same place you were six months ago, and quietly worried that this is now the shape of things.
These ten affirmations are for that flat stretch. They insist on something that is very hard to feel and usually true anyway: that slow movement is still movement, and that not being able to see progress is not the same as not making any.
Say one line, then do one thing that changes an input rather than an outcome — a different route, a message to someone you have not spoken to, twenty minutes on the thing you keep not starting. Stuckness usually breaks sideways, not forwards.
Keep a rough record of the small things. When you feel stuck, memory flattens the last few months into one identical day, and a list of what you actually did is the fastest correction available.

1. “I keep moving forward, even if progress is slow.”

2. “I am always moving forward, no matter how slowly.”

3. “I begin to move forward again, slowly but surely.”

4. “I am always moving forward, even when I have to take a temporary step back.”

5. “I take a step forward every day, even if some days those steps are smaller.”

6. “I remain motivated even when progress is slow.”

7. “I keep moving forward, even if some days it's slowly.”

8. “I encourage myself to keep moving forward.”

9. “I am moving forward in the right direction.”
Change one input rather than trying to solve the whole situation. New conversations, new routes, small unfamiliar tasks — stuckness tends to break through an unexpected side door rather than the front one.
Not by itself; plenty of flat stretches are just flat. If it comes with losing interest in things you used to enjoy, changes in sleep or appetite, and lasts for weeks, that is worth taking to a professional.
They keep you acting during the stretch where there is no visible reward for acting, which is exactly when most people stop. That is the whole job.
It varies enormously, and it rarely ends with a single dramatic moment. Most people notice afterwards that it lifted gradually, some weeks after they resumed doing small things.