mon: zero pushups
tue: zero pushups
wed: zero pushups
thur: like, 20 pushups
fri: zero pushups
sat: zero pushups
sun: zero pushups
Overtraining. Remember that muscles are built during REST. Next week bump it down to like, 5 pushups. And actually you may want to consider only working out zero times a week.
Do you have a cat? Tell it to sit on your shoulders for extra resistance (would be ideal if you actually had like 5 cats ranging from 5-35 lbs)
With 1 cat I probably couldn't do all 20 so this isn't really an option
How are you such a good fighter
Have you ever seen a ferocious tiger lift weights? How about a lightning fast mongoose or the ocean's premier super predator the great white shark? Yeah, didn't think so.
I'm not a weight lifting expert, but I do know a thing or two about cats. IMO, you'll want to get yourself one of those Maine Coons if you are trying to build mass.