school question 9 week program

So I am attending a 9 week program in pct which i know will be very hard cause so much to learn in such little time. Has anyone else done this and was it successful? how hard is it really? I will be getting my certificates in cna phlebotomy and ekg and they are all with the nha. please help and let me know what i am getting into i start next Monday and am vert nervous, will i get a good job, will i learn enough all types of things are running in my head! thanks for the help