Nervous over my first few days

So, as time moves closer to me actually starting to work in the Casino I'm actually getting a bit nervous.
I've been watching some busy craps games in my spare time especially if I see anyone at the table who is betting big.  There is no real reason to watch when people are making $5 or $10 wagers, but when someone starts with $160 across and $40 or higher on the pass line I take notice.
At one point one player had $100 on the pass line with $200 in odds which is simple to figure out on the 4/10 and 5/9.   On the 6/8 he was doing $250 in odds which ended up being easy to figure out after I just stopped looking at the dollar figure and looked at units instead.
However, it's the place bets that worry me. I know that a big money player is going to present challenges to new players.  The dealer on his side was obviously a vet, but just looking at the bets my head swam for a few minutes.
The 6/8 would get placed for $30 for every new shooter.
With the 1st hit he would take it to $60.
With the 2nd hit he would take it to $72.
With the 3rd hit he would take it to $90.

So, after I took the time to look things over life became easier - but until it clicks my mind sometimes goes into "oh shit" mode.

On a 6/8 the place bets pay $7 for every $6 you have - therefor $30 pays $35.
That one is simple - it's one you should memorize because you're going to pay it all the f'n time.
So, Hit #1 pays $35 and he presses to $60 - He gets $5 in change - Easy.

Hit #2 took me a few moments just because of the way the dealer was doing things, but here it is.
$60 pays $70 - He takes his bet up to $72.
The easy way to do this is he throws you $2 and you give him his place bet back ($60) and put the $72 as the new place.
$72 pays $84
(I'll probably just have to memorize this as well as going through this motion it appears as though it might actually end up being a common bet.  Most of the small games I have ever played have skipped this because once they hit the $30 denomination they just usually press in increments of $30.  $30, $60, $90, $120, etc).  However, if someone starts off with a $30 base and looking at the math above it appears as though it might end up being more common than I had previously thought).

So, $72 pays $84 (breaking it down $60 pays $70 and $12 pays $14) and he then presses to $90.
How does this press work?
It appears as though the easiest way to do this would be Payout $85 into the come and from the $72 stack hand $1 back into the box (you are over paying by $1 so you give $1 back to the house).
Then take 1 $5 chips out of the (now) $71 stack and hand the rest back to the player.  You are left with 3 greens and 3 reds for $90.

After looking over this situation and taking the time to analyze it away from the game it all seems easy and makes 100% sense to me now.  However, when I was watching I just kept thinking to myself "Self: I really don't want to be in this situation too soon because I don't want to look like a fucking idiot."
Now I won't.

Also, above I noted how this same player (and a guy next to him) had $250 in odds on the 6/8 when it was the point.  Until I saw it paid twice my mind was in "big money oh shit" mode, but after taking the time to break it down my mind then said "Oh, that was f'n simple you eediot."

Your odds on the 6/8 (bet behind/backing up your pass line bet is called Odds) pay $6 to every $5 bet (don't get confused - the Place Bets are the ones that pay $7 to every $6 - Odds pay EXACT odds whereas the place bets have a house edge).  So, on a $25 bet you pay $30. Multiple that by a factor of ten and it's easy to come up with $250 pays $300!

The lesson for today is that my teacher is 100% right.  STOP THINKING and just do it.
STOP LOOKING at denominations and just look at UNITS.

In this case you just go up the color chart!
$5 odds pays $6 - 1 red and 1 white.
$25 pays $30 - 1 green and 1 red.
Simple.

Until next time - Stop thinking and start doing!
I love when I figure shit out!  After typing this whole thing up I just became less nervous about my first few days - though I still haven't quite figured out when I'm going to get sleep.