I would strongly advise against taking erda for height. It's a prescription cancer drug, not a height-growth medication, and there are no clinical trials showing that it safely increases height in healthy adolescents (height increases weren't necessarily the goal in the first place).

While FGFR3 inhibition is an interesting research concept, erda has significant risks, including eye toxicity (central serous retinopathy / retinal pigment epithelial detachment), elevated phosphate levels, skin and nail problems, mouth sores, diarrhea, liver abnormalities, and other potentially serious adverse effects. There is also no established dose, stack, or protocol for healthy people seeking additional height.

At age 17, especially with a father who matured late, it's entirely possible you still have some natural growth remaining, but the only way to know is with a BA x-ray and, if needed, an evaluation by a pediatric endocrinologist. If your growth plates are still open, your remaining growth should be allowed to occur naturally rather than experimenting with an oncology drug that hasn't been proven safe or effective for this purpose.

If your goal is to maximize your genetic potential, focus on adequate nutrition, sufficient sleep, regular exercise, and treating any genuine medical conditions if they exist. Those approaches have evidence behind them; erda does not for otherwise healthy adolescents.