I want to do advertising in the creative side. am in the final year of doing mass comm. how do i go about it?

i need a job in advertising. am currently in the last year of bachelors in mass comm. how do i approach an ad agency. creative is the field i want to be in. eg. copywriter.

I want to do advertising in the creative side. am in the final year of doing mass comm. how do i go about it?
you need more than a BA or BS, also you'll need a second degree in marketing or economics