Sourdough Starter: Very fast rise (doubles in an hour)
I'm not surprised your starter is very active given that it's being incubated at a cosy 30C. But the only way to know for sure that it has a suitable population of yeasts is to use it to bake a simple loaf. Just take a simple recipe and go for it. Your starter looks healthy so I expected you'll get good results.
For a very quick check, just fry a couple of teaspoons at about 100% hydration: if you can see bubbles forming on the surface there is active yeast.