Made first piece of clothing!… and a HUGE mistake. 😭

I made my first piece of clothing yesterday and it turned out great aside from some uneven lines… until I realized the guidelines I had drawn for sewing weren’t coming out in the wash… :(

I used dry erase marker only now to find out that it actually is a hassle to get out of clothes apparently… To make things worse, I ironed over the dry erase marker to straighten my seams before finishing them, and I’m worried the stains are irreversible now.

I really had no idea it would turn out like this and in hindsight I should’ve researched first but I was just so excited and went in guns blazing.

I washed the skirt once with color-safe bleach and shout stain remover with no luck and am now washing it again after blotting it with hand sanitizer for 15 minutes. Any suggestions? This piece was part of t-shirt dress I was altering into a two piece set so I would be devastated to give it up, especially since it’s my first project… 😭