Have you called and reconnected with your passed clients? Let them know you’re still available and working online and asked them for referrals? In my experience, people in this group often find it hard to reach for support so it can be their friends and family that will encourage them to reach out to you.
If you want more local clients, maybe let local therapies know you’re available and qualified (support hen with any over run) and advertise on local community pages.
Also connect with any specialists and authorities working in high risk areas that may want to refer people for support.