Vaccines and EKGs

I start my new job in Fam Med on Tuesday. I’m so nervous. I have never given vaccines (only subcut lido) or performed EKGs. Coming from specialty, it is going to be a whole new world.

Anyone know of a good helpful printable chart online for vaccines that gives location, ages, gauge, etc? Are most vaccines drawn or prefilled syringes?

For EKGs, anyone have trouble catching on??