Ulf, lass es sein!
Get your MBP now, get the 13" and be happy. Don't buy it for gaming purposes or to attract women or to feel better. You will render yourself a Vollidiot. Use it for work. Your work will be studying and most of it still is done with pencil, paper and your brain.
So calm down and MAYBE you could buy a used MBP first. I assume it will be your first mac so it will be sufficient for work. A friend of mine uses a 5 year old MB which is as fast as my 2 Year old model when it comes to daily tasks. Everything will be sufficient and a highly speced i7 SSD for word processing... forget it.. it simply waste of money.