Relax. Your plant looks fine. That little yellow spot on the codeldon is natural and to be expected. As the plant gets bigger the codeldon will yellow as it puts its power into the leaves. Then , when exhausted. it will yellow and fall off. It's all part of the plan.

A bit small to induce flowering. If you were sucessful, your harvast will be a quarter oz. Give it a month or two. You will be glad you did