Start winning and watch who suddenly remembers your number. Keep the ones who called before.

Success attracts people, and most of them are responding to the success rather than to you. That is not always unkind, it is just how attention works, and it becomes a problem only if you mistake the new warmth for a verdict on your character. The reliable signal is who was around when there was nothing to gain.

Make a short list of the people who called during the flat stretch, and put your time there first. Be pleasant to the new arrivals without promoting them. If things go quiet again, you will already know who stays.