a part of me was thinking "don't go around because 25 isn't a familiar circuit for you and what if you f*** it up!)
If you need to go around you can go around, that's never wrong.
If during the climb out you haven't managed to work out where the unfamiliar circuit is, you can just continue your climb straight ahead, call "leaving the circuit", get yourself sorted out, then re-join the circuit. (This is also an option if ATC changes the runway on you whilst you're in the circuit and you can't work out where to go next.)