No, you DO have a chance. I have interviewed a lot of people. I interviewed someone last week. A pompous boring ***hole with a shiny CV lasts 10, maybe 15min. A confident, eager and bright candidate with an average - above average CV will most likely get a call back. I want to see from candidates that I will make the right decision employing them. Whether it's shooting the **** about last week's football in the staff room, pitching clients, hanging out at the bar during company nights out, etc. Come in and charm me, and your CV will most likely remain unopened and offer of employment issued to you.
This is good advice. Browsing for jobs online and sending off applications is not the most efficient means of gaining employment by a long shot. Look at the sheer volume of online job searchers on here alone- now think how many tens of thousands if not more are browsing Reed et al. Networking is very important- use your personal contacts. You can get a foot in without ever writing a CV, I've seen it happen.
To those that say to not bother with "menial" jobs as they will destroy your sense of worth- how wrong could you be? Do you think tossing it off at home and browsing these forums seven hours a day is going to make your CV shine or develop you as a person? All that and you'll be skint, too. You should never feel dejected about having a job of any kind, you're already above the 2.5m+ that don't have one plus the masses that are falsely claiming incapacity benefit, disability and god knows what else.
I agree with AcidHell, no job should be considered beneath you- whether you're a Molecular Biology grad or not. No-one owes you a living unfortunately.