I take my California Guard card class next week. I am very excited to become a security guard.I think it will be the perfect job for me while in school.Does anyone have any pointers for the class/test and for being a security guard.Also if I got my exposed carry(i am 18) would a security service let me carry? Thanks and stay safe

If you are going to be a security guard I have 2 suggestions: 1/ know the address of the location where you are working and 2/ if you need to call 911 and don't know your location don't start screaming at 911 for not helping you.  It's not our fault you are going to get you butt kicked because we can't find you.

I had a guard card for 5 years when I lived in CA.  All you need is the short term memory of a 5 year old to pass the test. 

About carrying an exposed firearms, it depends on company policy.  I worked for a international security company that has pretty serious policies and procedures as far as protecting themselves from liabilities. They did not have a policy preventing anyone under 21 with a firearm permit to carry an exposed firearm.  It just had to be an approved weapon and caliber, just like everyone else.