How to become less needy?

I'm talking now for 3 months with a guy. He's the first guy I'm dating for a longer time. We're really chatting a lot. And it's disturbing my day. And I want to find a balance. I came across as needy. And honestly that's exactly what I feel about myself. I don't like it. Any advices on this? Also he yesterday agreed to stop talking for today. I asked him this question and he agreed. I think he felt a bit overwhelmed yesterday. So, actually, my main question is: how to have an healthy relationship.
How to become less needy?
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