It sounds like you take more time to make your art. It takes me a MONTH to have my comic squared away from sketch to text to post. I have ADHD so some days i just can't focus on my comic and when i force myself to do so, it never gets done. My suggestion for you is to try and make a schedule, and make it a beefy schedule with plenty of days to compensate a slow or non-work day.
For example:
Storyboarding for me takes 5 days and i add a break day to avoid burnout
2 of those days I get maybe 5 or 6 pages done
the other 3 is when the real work kicks in and i power though 20 pages in one day.
on the break day, i unplug my computer for a day and rest.
I hoe this helps!