If there is a house price "crash" in the next 12 months I will eat my pants. Yum
There will be a slowing down but if you can buy now and you have found the right property then do it or you will be waiting and waiting and waiting and still undecided what to do with your money and life.
At 30 start the training part time whilst forking out for the mortgage and then flog it when you have to move to wherever the airline wants you.
Good luck
MFWF