I saw that, but it is impossible to be thousands of euros for margin trade fees. (given I started with aroud 500 euros)

Have you ever tried in kraken to trade with leverage?

The question is like this:
What does leverage 5:1 mean in kraken?
You buy 5 times more crypto with your money? Or you spend 1/5 money for the same amout of cryptos?

i bought with leverage 5:1. 1btc=3600 euros
when i closed position 1btc=9200 euros
and I get less money than what I spent and I am not getting the 5 times buying power that they are saying.

Can anyone help me on this please? or have anyone had this experience with Kraken before?