Comedy has to be personal, a disaster, gets worse, and compounded. Comedy has to be reaction, just not dialogue. Comedy has to be seen. Comedy is an extreme. Comedy is a fine line, very minute.
Extra things kill it.
Comedy is a science, know the science and it will work. Comedy is a science, you must learn the science. Comedy is about suffering, not just funny things. Comedy is all opposites of what your say. Comedy is based on opposites.