Wedding Help

So far, it's been a bumpy wedding. The first 2 weeks were bliss, growing great in 1/2g container. I took her with me on vacation while I left 3 older plants in my growspace for a friend to care for. While on vacation, she had a 100W portable light and also the Cape Cod sun. It was a good time, but....Came home to find my growspace was completely infested with mites. Stupidly, I didn't notice this until after I let this seedling into the space thinking she'd like to get some of the strong light. In less than an hour, there were bugs on her, forcing me to clip her best fan leaves. After totally scrubbing down my growspace (following grow weed easy instructions) I put Wedding Cake back into the space. She seems to be doing well. Good growth with new leaves coming in, even under top. There is some damage to the 4 main leaves, but I think that's from the diatomaceous earth that got on the leaves? Not sure. I would appreciate any useful advice to try to save her and bring in some smokeable bud.