maybe i dont live fast fast

Takpe... just chill at whatever speed works. When you get more used driving at high speed, it will come naturally.
It's most dangerous when people drive at higher speeds when their hand oredi shaking.  
When things happen then panik ggwp. Also, take some time to get accustomed to the emergency features liks ABS.
Find some quite road with no traffic, rev to at least 80-90kmh and slam on the brakes. Feel how it responds so you won't panic when the time comes.