Hi, I head up recruitment for the largest independent digital marketing agency, Forward3D.
My advice would be to take some free courses online - lynda.com is a good place to start. That way you can see if you really do want to work in digital marketing initially.
We would consider those 10 week paid courses to be pointless really, you should concentrate on applying directly to the biggest agencies in your chosen field. They all hire grads.
We run graduate intakes all the time so keep an eye on our website.
You'll need to decide between PPC, SEO and display advertising as they require very different skill-sets.
The core of digital marketing is mathematics though, so if you don't have above average skills in maths and data manipulation, it's probably not the career for you.
Your language skills should stand you in good stead though, as long as your English skills are good.
I hope this helps.