I think if you only have that much in your bank, start with some freebies.
Some good ideas:
coinchat.org you'll love it, you get paid to chat
Also, try some freebies in the gambling section, if you are allowed to gamble. If not, claim the prize and run
That should already have made your 18 euros in a few days, if you are consistent enough. Browse the forums, contribute to ideas, learn some stuff. Pretty soon you'll be rich with bitcoin!