Guidance on Optimizing T-Shirt Designs for Clear Printing

I am seeking an experienced freelancer to help me optimize my existing designs created in Adobe and Canva for clear printing on t-shirts. The goal is to gain a thorough understanding of the process so I can handle it independently in the future... (Budget: $20 - $40 USD, Jobs: Graphic Design, Illustrator, Photoshop, Photoshop Design, T-Shirts)