@bobgunn If you can do the same exercises every single day without rest days, then you're not doing it right.
I suspect that if you actually took a rest day (or two), you'd find that your
actual one-rep maximum is much, much higher than you currently think it is, and that you're capable of moving much more weight.
The much smaller weight you're moving on very damaged arms won't be challenging your muscles anywhere near as effectively as it could be - think about it, you're essentially saying "muscles don't need to regenerate or grow" by behaving the way you're behaving.
Your "strength gain" is very likely an illusion - the manifestation of
muscle memory, which can hugely increase your exercise efficiency without any actual, physical growth of the muscle in a beginner. This is why a female can effortlessly destroy a
technically stronger male in arm wrestling if she is experienced and he isn't - simply having muscle-memory for the motions involved in arm wrestling can functionally enhance your strength by a factor of 5 (EDIT: in arm-wrestling). You will experience the same effect on all of the lifts you're doing - simply by having the muscle memory of the exercise your muscles will be functioning far more efficiently than they were when you started, they could even have
shrunk from overtraining but still be outperforming your initial lifts as a result of this effect.