If you are serving on a safety or security team at a church or school, you very probably will be the first responder if your site is attacked or some other emergency occurs. Help is minutes away but those can be very long minutes if you are severely wounded and need life saving intervention immediately. You can bleed to death in less than a minute from an arterial hemorage.
While I highly reccomend you get medical training as soon as possible from a certified instructor, you may want to learn what you can while you wait to register and start a course. Having some knowledge on how to stop a serious hemorage and carrying a well-stocked "blowout kit" or gunshot/stabbing first aid kit on your person could save your life.
Prep-medic is a popular Youtube channel created by a working critical flight care paramedic, reserve deputy Sheriff, and tactical medic and he shares his knowledge and experience to help "first responders and civilians alike."
I will be presenting some of his videos here for the purpose of sharing his knowledge. I am not reccomending you take his advice or do what he reccomends you do and I am not suggesting that you will be competent to treat yourself or anyone else by watching this video. My hope is that this video inspires you to seek professional certified instruction. The advice he gives is his own and he is in no way affiliated with ProtecTraining or me personally.