How do I stop feeling drained from supporting clients emotionally?

You are good at holding people. They come to you and you become their calm, their steady place. But always being the steady one, day after day, quietly empties you. That is not a sign you care too much or are bad at your job. It is the real cost of emotional work, and it is a cost you have to actually account for. You cannot pour from a cup you never refill. Being present for clients is genuine work, and it draws down something real inside you. The fix is not to care less about them. It is to stop treating your own refilling as optional. The steady place needs its own steady place, or it eventually runs dry and everyone loses. Start by protecting one small piece of the day that is just for you, where no one needs anything from you. A quiet coffee, a walk, ten minutes of nothing. Guard it like you would a client appointment. You give people a lot. Keeping something back for yourself is not selfish. It is what lets you keep giving at all.