To be bluntly honest, that first impression goes a long way when you get into an interview.
I am fat (no surprise there, given my nickname
). I have seen that flicker in someone's eyes on meeting me, which told me I hadn't got the job, right there. I was always right in that assessment.
I'm losing the weight now, while I'm in this job, so that when I start the process again, it won't be such an issue. (And with a summer wedding to attend, I want to wear a dress, not a tent....)
I can only say that for interviews, look in advance at what the job entails, and think of possible questions, and therefore possible answers. Have a good look at the website for the company/organisation, note the language style and the values they are promoting and word possible answers around that. Think of specific examples of things you have done that would demonstrate that you can do the skills/tasks that are part of the job.
Eg, for one post that had supervisory skills as part of the requirement, I did get asked questions about how I would handle particular situations. I have had to deal with disciplinary stuff in the past, and even got complimented by a union rep for the way I'd handled one, so I used that as an example, being careful to maintain anonymity of the other people involved.
candycoatedwaterdrops In your case, I can see that it's the experience issue. You've mentioned you do volunteering work, but is it directly relevant to the experience required for the jobs you want? Which might be one way of adding to your CV. Also, for the volunteering you currently do, are you selling that well enough on your CV? Picking out the bits that highlight the skills that are required by the jobs you want?
I'm sorry I can't really offer much more advice at present, I've got a brain on go-slow as I've a nasty cold.