Tips on selling oneself for a job

I know there are a number of people out there who have either aggressively hunted for a job, or are in the process. Me, for the moment, I'm just slightly looking for some jobs. I've been browsing the newspapers, the websites, and have been having my eyes and ears open for any leads. But I know before I even attempt to apply for a job, I need to have a spectacular resume, and a cover letter.

I struggle with selling myself. I don't know if it's a confidence thing, or an expression thing. But I think about the jobs that I've gotten, and haven't gotten in my life. I have been successful at job hunting and finding a job, but at the same time, I'm a complete wreck when it comes to job hunting and job interviews.

It's hard, the first thing an employer will look at, before even meeting me, is my resume. And if my resume isn't selling what they want to see, they'll just chuck mine in the bin, along with the hundreds of others. But if I get passed the first stage, I then proceed with the actual interview process. Well, if that's the way the company hires people. But when it comes to the interview, I am sooooo incredibly nervous. I try to mentally prepare myself, but sometimes it just shows in the interview.

I was wondering if there are any bloggers out there who can 1) give advise on good resume writing, this includes cover letters 2) give advise on how to prepare for an interview 3) how to work your way around a question in an interview that you may not have an answer for 4) how to pick up the pieces if you're applying job after job, with no interviews or any luck.