Hi again, Hamod! I understand you are having some trouble continuing with the story.
Fair Warning: If you have used Console Commands to change your statistics/powers/resources there is a possibility that you broke your game. If you have used more than one game MOD at the same time there is a possibility that you broke your game(except in very specific instances where the MOD's description specifically mentions another MOD that it might work with).
If any one or all of the above are true of your playthrough you may need to start a new playthrough. Especially if you used more than one game MOD, you would need to download the game again and this time use only one game MOD(again, unless the game MOD specifically states that it is compatible with another specifically stated MOD). By using Console Commands you could change something about your playthrough that causes the game to not be able to recognize the change because your Console Command skipped a game trigger.
Now, let us pretend that you did not do any of the above and that you actually are stuck because you misunderstood what actions you needed to take in order to advance the story. You indicate that you cannot complete getting a job at the school.
In order to get a job at the school you need to get your grades above 80. Then you need to talk to Principle Larson using an administration action. Where you ask her for her recommendation to the Logistics Division. When you have the Letter of Recommendation for the Logistics Division you need to go to the Logistics Division the next day. The Logistics Division is only open during School Hours. You need to have the Flight Power or use Favor with your Mom to get to the Logistics Division. There is a Button on the City Map next to the Travel Buttons, when your Mom is available and you have enough Favor with your Mom to get a car ride from her to go to the Logistics Division. You only need a ride from your Mom if you have not bought/unlocked(Console Commands) Flight. Either way you get there, when there, get a job at the school from Logistics Division. Then, go to the School during School Hours and select Administration action, and choose, work. And work a period of the day on that job. This should complete the story requirement of getting a job at the school. If it doesn't, your playthrough is broken(somehow) and you need to start another playthrough.
I hope any of this explanation has been a help to you and/or others. Good luck. Happy gaming!