If you want an immediate counseling in English, it would be best to call the Tokyo English LIfe Line (TELL) for a free and anonymous phone call for any types of issues or information needed. They are open to calls from 9am to 11pm daily. Their telephone number is 03-5774-0992.
If you want to meet someone in person, it would be best to call 03-4550-1146 and schedule an appointment with a professional counselor. They also offer counseling via video through TELL-e-Therapy.