[drunken monkey]

If i have one bit of advice, it would be to just dive in.
You can ask all the questions in the world and list every step for every thing that you'd ever need but you will learn so much more by simply doing.
In short, don't be afraid of getting it wrong because in reality, there are too many different ways of doing things, no matter what others tell you, you will without doubt, find your own way of getting things done.

My very first car kit has never been finished.
In fact, it doesn't even resemble a car now that i've scavenged parts off it as well but, it is still where I "learnt" how to do things and, perhaps more importantly, how not to do things.

By the way, you might want to get more of the smaller sized brushes.
A decent pin vise and a couple of sets of small modelling drill bits are also very useful.
In case you missed it, kitchen cleaner is a good cleaner for tamiya pots of acrylic.
A metal rule is also useful and personally, I've always got a stash of them sticks you get from Starbucks for general use.

Glues:
Thin type polystyrene cement, preferably not from a squeezey tube. (I tend to use Plastic Weld)
Thick type super glue (Zap-O)
Clear drying, non solvent glue (Formula 560)