I don't know how to cashout? I am from Romania, what are the possibilities to cashout a large sum of money at once?
You are not being very specific when you say a large sum of money, people have different ideas of what that is, if the amount of money that you are thinking is really big then its impossible to cash out all at once and not bring attention to yourself, now if the amount of money that you want to cash out is relatively small you can use local bitcoins, just be careful if you decide to do a face to face trade.
It is simple but the problem will be in your local banks because when you cahoots your crypto your local bank will ask about the way you earned such big money. You cannot mention crypto because in many countries cryptocurrency is banned and trading in it is illegal. Many people use crypto to hide their black money. That is reason it is now allowed.