/sci/ - Science & Math

Sorry if this is off-topic, but I don't think there's a better place to ask.

How hard is it passing the selection process for a master's program, in general?

I'd like to try to do it in Europe (there's a pretty cool programme in the Uni of Helsinki), but I'm afraid it might not be worth the hassle to apply.
Think is, I fucked up my first 2 years of college (Chemical Engineering major in Brazil's best Uni), failed many classes, but did ok after that.
And I'm saying all that because I'm afraid I might have dug my own grave with that, and fear there's no way I'm ever getting accepted with that blunder in my academic record.

Am I just being paranoid or am I fucked?

I recently got my bachelor's in EE but I didn't do any interships while studying. How fucked am I for getting a job in my field? I have been applying and hearing only negative responses, some mentioning my lack of experience as a reason. Is there any way to fix my situation?