I wouldn't bother; as soon as you polish it you will scratch it again.
If that doesn't put you off here's the process -
1. Strip all wax and crap off car i.e. wash with Dawn dish washing liquid
2. Use a glaze to fill in scratches, do this in a circular motion, may need to apply several times to deep scratches
3. Apply wax, when applying and removing follow the line air would take over car
Make sure you use plenty of clean cloths otherwise you'll just be smearing product on product
If you really want to you can use a clay bar to smooth the paint before step 2
Wax is only a protective coating, all the shine and gloss is in the glaze
For amateur, hand finish is better the machine buff
I use Zymol on the Audi but its way too expensive to use on the Mav
http://www.zymol.com.au/
I just sold on eBay a heap of car cleaning stuff that I wasn’t using, would have been perfect for you