A couple of things:

1) You're 18. If you have a job, you should be able to get a credit card. Your mother is under no obligation to extend you credit.

2) People are all different. I'm a cyclist, I ride every day, and my biggest problem is that I can't get my 17-year old son to ride any more now that he has a driver's license.

3) Not everybody is amenable to logic. Ultimately, we act based on what we believe, and belief is intrinsically irrational. We can only change what we believe from the inside, because something in out lives makes us need to change. Other people cannot make us change what we believe. And some people's ability to believe in things despite any evidence in support is truly powerful.

4) Two months is a blink of an eye. Your impatience, while understandable, is partly a product of your age.

5) You could be riding now if you set your sights lower. Your position in a bike shop should make it that much easier to locate a primo used-but-great bike you could afford now. One could make a strong argument that a used bike would be a better choice as a first "serious" bike for someone just getting into the sport. Your body is not done changing yet. You don't necessarily know what kind of riding you'll end up doing the most. You don't know your preferences in terms of fit and feel. Better to work these things out on a bike you can afford to rplace in a year if need be.

6) It's not about your mom. Blaming other people for our problems is a favorite sport in the US, but I thought you Canucks were above that sort of thing. Make your own way; create your own solutions; realize your own dreams.

7) One's relationship with one's mother is too valuable to wreck over trivialities. You need her for far more important things.

You'll work it out. Relax!

RichC