First welcome from SE Michigan! Yes, a picture would help first. So go to "go advanced" at the bottom of a message when you are typing a new message and go to "manage attachments" You will get a couple pop up frames just follow those instructions to upload a pic.
My first thought is did you stabilize the t shirts. so you can work with them without stretching the t shirt fabrics. Others have posted beautiful pictures of t shirt quilt. Will be glad to help where we can. Jump right in. Have fun!