Tell It like It Is.....

Tell It like It Is.....
For the first time, I'm really nervous about a job interview. I've been on contract at this job, for the second time, for about two months now and today- later on today when I wake up - I have to try and prove to this company that they want and need me.
I really love working at this place. So now that the stakes are high for me, I don't know if I can ace this one.
I'm scared that they'll see right through me and hire someone with more qualifications or experience(though I've been in the industry for 15 years now).
I am quietly shitting myself.
I think that I want this more than I've wanted a job ever before.
Is it because I am getting older and I don't know where to go from here? Is it because I am comfortable in the company? Is it because I am sick of letting myself down?
I need to get some sleep tonight so at least I look like I can do all that they expect and more.
Oh fuck.....here I am again.....
Where do I go from here?