Yeah that makes sense... Property prices look like they're about right at €100k i guess.

You'd have to get some accuracy to be able to make 500% on your funds from 0.2btc to 1btc.. .  It might be doable though if you can dedicate some time to checking historic price acrionand paper trading/trading with small amounts of funds to see how it works.  You'll probably want to look at something like dibonacci expansion theory (I think it's called) and Elliott waves (if that stretches over a long enough amount of time as you need it to)..

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Also I'm not sure if I've taken what you're doing differently from the rest, I assumed you'd still be working/able to at least survive once you put funds into btc? I don't know if I'd suggest putting the full amount in also because if you think you could get good at trading it up, you light just be able to do it with 50 euro to some sort of goal and check you don't have much risk. If you put all in, try setting a tight stop loss at least above a loss of a fifth of the initial capital so a buy in at 12500 could have a stop at 10000 so you can't hit zero and take a break if you make a loss and return a few days later....