After writing loads of FO applications and CV's I started my FI rating 2 years ago. Best decision I ever made ! I am flying 60 - 80 hrs / month, my income is not better or worse than junior FO's ( who are perhaps still paying money back for a type rating ), and the amount of students are still increasing. I hear and see the same story in other FTO's (BeNeLux+Germany - don't know anything about the UK situation.). So no worries here.
Ok BlueRobin, the worst job to find is the first one, but do not give up and why not consider looking a bit beyond the horizon ?