Life going nowhere

I've been in my job for 8 years, haven't had any promotions, can't say I have many friends from it. No kids but am trying. No major qualifications to better myself. Where is life going?! I'd quit but I need to pay my mortgage and it's so hard to get a job that pays what I am on (which isn't anything fancy but it's steady and pays the bills). I'm stuck in a rut with the same routine. Anyone else get these feelings?