Grow

Too much nitrogen will cause leaf growth before bud growth. Without a diary it is impossible to say what exactly is going on, simply not enough information about what you are, and what you are not doing. And yes, Sativas take forever to bloom.

Looks too be a landrace sativa dominate strain. They tend to take longer, some up to 15 weeks, to finish flower. As long as you've lowered the nitrogen, and increased your potassium and phosphorus along with a little calcium and magnesium there isn't much else you can do. She will get fatter just give her time. Good luck growmie!