Genetics help to some degree, but the most important thing is the mind and the spirit. These two are even more powerful than physical characteristics that are passed on.

Yes it is better to keep training even if your muscle is still sore.

If you don't like don't do it. But don't forget that: NO PAIN NO GAIN.

My training was based on concentration, and it's impossible to cheat when you are concentrated

To be tired it is only in your mind.

Luck Doesn't exist, only hard (work) works

Bodybuilding is not only a sport but first an ART.