One word.
Therapist.
Without a therapist, I definitely never would have gotten this far.
In most places, you aren't 'allowed' to embark upon the 'official' transsexual path without at least four months of therapy (That's how long I was required to see a therapist, but some require a minimum of six months,) Therapy is a great idea. It'll help you relax and calm any dysphoria and depresison that you might have (Like it did for me,) and it can help give you confidence (Even if your therapist isn't transgendered,) This is usually the first stop for most transfolk out there.
However, I've known some transys who prefer to do something like a real life experience first. But if you don't pass, this can be difficult.
If you really want hormones, going to a therapist is the best idea, as you usually can't get hormones without a referral from a gender therapist.
Or you could always find a local Pride Center with a Trans group and just talk to some of the locals to figure out how they started up.
Other than a doctor and a community, there's really no way to do it. Unless you just dress and act the part, but even so, unless you look really manly, you won't be taken seriously, and are more likely to be viewed as a lesbian, or a dyke, rather than a man. Sorry, hun, but it's just the truth.