question about 100 m consentration

Should i be nervous to get adrenaline, or to be calm?
and how to run ? calm like asafa or like a beast?

Thats for you to decide, you have to judge how you run when you perform useing the two techniques. For some they need both, such as myself. Others need to be calm, while others need to be “beasting”. You have to try out both and see what you need. It’s not an easy thing to find out, because you might find that in one race that you were really hyped you ran really well while in another race you are really hyped but you perform poorly, the same goes for the calm. Its really up for you to decide. Good luck!:o

Train hard (be a beast) at practice then be calm and deliberate in the race.

But what about the old addage of practice like you play? But honestly I get what your saying, no need for reply.