first fight coming up, nervous i have my first fight coming up in 2 weeks, before i didnt even care but now i slightly get nervous. last sparring i almost broke my nose, i have the feeling that i dont have power, speed, stamina and technique since last two trainings. however our pro fighters and coach tell me im doing good.
im not worried about losing the fight, its a win for me anyway if i stepped in the ring and stood my ground. but im worried about getting beaten up badly or even worse losing the fight within the first 20seconds with a broken nose... 

we fight with shinguards and headgear, 10oz gloves, 3x2min, k1 rules

is this normal..? how to fix it mentally?