No matter what your condition and origin, depending on the essential core of the company wants you or not, it still depends on your skill level.
Of course, at such an age as 31 years old, re-entering a brand new industry, no matter what kind of industry that is a latecomer.
But isn't there an idiom for being a late bloomer? There is also a famous saying called, ordinary players choose standard configuration, high-end players choose customized configuration. So what kind of gamer are you?
Whether it's late for you or not depends on how far you chase. The best time for you to want to get into the game was 10 years ago, followed by now. Right?
Without further ado, at your age, you shouldn't need to be told what to do. Take control and write your own life.