From the looks of it at that size you need to do a few things.
1. Place into an adequate size pot, preferably a fabric breathable one.
2. Use adequate fertilizer, honestly the money you put into her will only triple.
3. You should have started cropping her and using some form of either super crop/FIM/topping/lollipop ping/extra.
This is the learning curve, you desire to produce a plant as seen in your dreams hopes and media. It takes time and dedication. In time you will learn from experience.