ACLS is very 'user friendly' now, so please take it easy and enjoy what you will learn. You should be walked through everything first and with some instructors, you aren't even made aware that you are doing the megacode for real.
Basically, you will need to recognize lethal rhythms versus non-lethal one.
Lethal that get shocked are v-fib and v-tach
No shock for asystole, just start with epi
What's the drug for a bradycardia?
Now, what will you use for SVT symptomatic versus the treatment (hint) for asymptomatic?
See, just break it down into manageable pieces in your mind.
This is a good site to test yourself:
Here are some snippets
And, now to lighten you up:
Good luck. It can really be fun and you will leave with the tools to save a life.