Impossible to say. First of all there's no guarantee your spouse will be approved for an open work permit. Second, it's impossible for any of us to say what kind of job your spouse is able to obtain here if your spouse is approved for an open work permit - and how long it will take to secure that job.
If you only have enough money to pay for your tuition (and not living expenses) - then you should forget about coming here to study. It's not a good plan.