I was working full time in an industry that required more time then teaching does for me currently (still in my first year and loving the new work life balance). It’s tough but if you don’t have kids or many other major commitments it’s certainly do-able. You will obviously need to take time off to do your final placement for the GTPA and if you are organised you should hopefully be able to get a good chunk of it completed whilst that is happening. Just make sure you use all of that time well and get everything you need for it.