Google Cloud Project Suspension - Gemini API Hijacking

Google Cloud suspended my project but after suspension my gemini api usage remained. I was not able to disable gemini api at that time. Also my firebase database was connected with cloud and now including authentication, nothing works on my app. I stored gemini api key on firebase to be on the safe side, cursor directed me to do so. And now, within a day after creating my gemini api key, it became exposed. I don't trust gemini anymore, will use sth else