how much time until harvest?

Once most have turned milky you should start seeing some random ambers. 10% is top THC, I prefer 20-30% for some relaxing effects. That said, you probably have 2-4 weeks. You don't need to check daily until the amber trichomes start popping up. Every other or every third day is fine. You won't accidentally go too long on the plant if you check at least every 3rd day. 8-12 weeks total in flower is normal. It's often longer, not very often sooner. Keep it up!