Freelance fashion photographer question.

I’m finding the career a bit odd. I’ve figured out getting photos approved, but it’s taking a while to get them back so I can’t finish the tasks for the job until they eventually get posted back. The payment is pretty bad considering how long the pics takes to get back to me. My sim is almost full photography skill, she spent her teen years snapping photos, but she’s making most of her money selling pictures outside of the career. Do you get better renumeration further on in the career? Also how do I go about finding models? Thus far I’m hiring them but it’s kinda pot luck. My swimwear shots were of three elders (it got approved though!).