scared for when baby is done bf

My baby girl is almost 4mos and we have a long road ahead of ebf. But I’m scared for the day she’s done bf. I love it so much. It’s our time to bond amd it’s something only her and I share (which is why I refused to bottle feed breast milk. I’m selfish and want that to myself lol) I know my heart will break when she weans off especially since she’s the only baby we plan on ever having. How did you mamas do it when your babies weaned? Did any of you go through any negative emotions? If so, what helped you through it?