Best Investment for Quick Return

Im a first time buyer lookin into buying oveaseas property (maybe Slovakia, Bulgaria, Romania) as a short to medium term investment. My plan is to take out a mortgage for up to 80.000 euro and invest in a property, maybe two in one of the new Eu states, hold onto for up to 5 years and sell hopefully with a nice enough return to put a deposit down on a house for myself at home and if all goes well maybe hold onto the second property for the long term.
note: This is just new rough plans of mine havent properly researched this just yet, hoping that this post will help get me started. Im only a novice in this game only turning 20 tryin to get myself in gear any advice whatsoever greatly appriciated.
Cheers

Romania, Bulgaria, Poland perhaps? I'm sure you'd be able to find something in any of these to match your budget and to yield both decent rent and capital appreciation.

You MUST however do your homework and think long and hard about this. It's a big step for a young 'un such as yourself.

Also bear in mind that by buying a property abroad you will lose your 1st time buyers status at home.