FTM needs the down and dirty answered

Okay so after researching a lot about cloth vs disposables we’ve decided to do cloth. We’re looking at lil helper which are the kind with snap inserts. I’ve watched lots of videos on how they work but now I need the stuff that for obvious reasons you can’t video. I’m sorry if these questions are dumb but the only experience I have is babysitting with disposables.

1. If I’m holding my baby and it pees or poos, will I feel it, or will it leak through onto me? Aka, are they waterproof like a disposable?

2. Could someone please walk me through the process of changing a dirty cloth diaper, I mean the gross stuff, where is the poo, what do you do with it etc

3. If I wash my inserts and shells every three days where do I store them? Do I rinse before placing them in a lidded container? Do they smell?

I am planning on breastfeeding but answers that include for breastfed and formula and food are all welcome! Just trying to get an idea of what we’re in for! Thanks :)