I have a job that pays my mileage when I use my vehicle and another job that doesn’t so I have to check my miles. How Do I file my taxes for both of those different jobs?

I have a full-time job that pays me mileage as an independent contractor. I also do Uber on the side, which I tracked my miles for so I can deduct expenses when filing my taxes my question is do those both jobs do I deduct expenses from one and not the other, how do II have a full-time job that pays me mileage as a independent contractor. I also do Uber on the side, which I tracked my miles for so I can deduct expenses when filing my taxes my question is do those both jobs do I deduct expenses from one and not the other, how do I explain, these details to prepare for them to do them correctly. Those two jobs are the same but differently and the mileage perspective.