Please place messages in one place.
The problem is in your education.
Recheck the education priorities page.
1. The total of all priorities should be 120. Numbers are normalized back to a level of 120 so larger totals do not make sense. Please read the hints on that page.
2. More important: you have some groups where there are 0 unemployed. A shortage in one of the groups stops hiring. Your education must be in balance.
3. Your education index should increase to 120 or higher to increase the number of people being educated each month. You will need more teachers and higher priorities for teachers and university teachers. This should go on for some time before you can reduce these priorities.
4. check this page frequently and update the priorities.
on a side note:
Try to increase all the basic indexes (health, education, transportation) to 120+ to increase your welfare index.
make sure you do not have supply shortages or otherwise the supply index declines and hurts your welfare.
Welfare has a direct influence on the production in corporations.
Corporations:
a salary level of 300 is better.
Supply quality to 180
sell strategy should not be above the quality of the product.
If all this is done, your country will fly.
It might take a while as the education priorities and the numbers of available workers must be fixed.
It seems you have enough cash to go through this phase.