Can this failed yogurt be saved?

A friend gave me a gallon of fresh goat milk. Normally I’ll make yogurt using my oven and a 100W trouble light, but for my diet I have to culture it for 24 hours and I needed my oven, so I experimented and used the toaster oven. It kept the heat steady, but unfortunately was too small and the jar next to the light got WAY too hot (over 125 degrees) I can’t believe I didn’t see that coming. I’m positive the culture died. The milk separated.

Do you think I can strain it and try to re-make the yogurt with fresh culture? I haven’t opened the jar yet, so I don’t know if the milk is spoiled or is just not yogurt. Or should I try cheese (I have either one quart or possibly two quarts that I’ll need to salvage)?

Thanks!