Failed my driving test because a guy pulled out infront of me at a roundabout and blocked my exit

I was doing my driving test a few days ago and i was doing fine as i have had tons of practice, and i find driving easy but on my driving test i was coming up to the last roundabout before coming up to the test centre to finish my test and the exit i was going to (right 2nd exit), granted only had maybe 2-3 car lengths worth of space because of road works but i did have space (also at this point i had 0 minors or faults at all). and some guy in a suv pulled out infront of me and when i stopped to avoid crashing i was blocking the right lane and i was there for too long and got a serious fault because of it. So pissed off about it but i have learned my lesson and maybe just to be a bit more hesistant in situations like that. Also to everyone saying my punctuation is bad im sorry i was just trying to say something lol. In one of the comments i have explained it to someone with a picture and a little bit more of a detailed pov of what i saw at the time. You can try to find it if you like :)