I think the problem is you are doing a large amount of repetitions on a limited number of exercises. It sounds like you are only doing two exercises.
Bodies are designed to adapt, if you just do the same two exercises over and over again you are only focusing on a limited number of muscles and they will easily adapt to this limited set of exercises and you will only get a very limited benefit.
The other thing is, once your body adapts it is going to plateau because you are not increase the weight or resistance. I am guessing once you could do a 100 standard push-ups your body adapted and you saw no further benefit.
I'm happy for other people's input, but my suggestion is you shouldn't be doing more than 2 or 3 reps of the same exercise, say (2 or 3) x 10. You can then use your remaining strength and energy doing a different exercise. There are different types of push-ups you can do, so maybe you could do 3 sets of 10 with 3 different types of push-up then move onto another exercise.
You can also increase weight while doing push-ups and pull-ups by using a weighted backpack.
I also suggest you look at doing some sort of weights training. If you don't want a trainer or go to a gym, go online you can search for a wide variety of exercises for specific muscle groups and mix it up.