[Jewbacca]

600 push ups is quite a lot.

I typically just do 50; maybe 3-4 sets of 50.

But I also bench heavy (sometimes 5/3/1 reps) and consider push ups more of an ancillary daily exercise.

[mcatch22]

You are doing great!
I can't do pull ups or curls due to elbow pain, so push ups save the day for me. You got to do what is right for your own body.
I do 12 sets of 50 push ups every morning after coffee. Takes about an hour to hour and a half depending on what I do when resting between. I used to do 900, but I got too tired the rest of the day, so I found my sweet spot