Hello, question asker!
From what you've told me, you and your eldest sister both have the experience of being abandoned. You were abandoned by your father, and your eldest sister was abandoned by you. I can see how you want to get over the previous shadow, and I'm here to help you do just that!
In the description, your father felt annoyed by you as a child and left you behind while he took the bus. At the time, you were very frightened and felt helpless about being left behind. It's totally understandable to feel afraid of these emotions. And you also left your eldest sister behind because you were upset, and now you may feel very guilty.
So when she gets along with her older sister now, her older sister also feels a little awkward and scared.
Depending on your situation, I would suggest
It's so important to be aware of your own behavior, and I'm here to help you with that!
It's possible that you might also unconsciously copy your dad's behavior, like getting annoyed and leaving. But don't worry! You can easily recognize if you're doing this by looking at your own situation.
Give yourself a big hug and remind yourself that you are safe and loved.
You may have experienced being abandoned by your father when you were a child, but you are still the same child you were then. You are not helpless now, and you can find your way home. Let your inner child know that she is safe.
3. Show your eldest daughter that you care!
When you were young, you felt really sorry for your younger sister and felt guilty about leaving her behind. At that time, you were only 17 and still a child, so it was totally normal to be impatient with a child.
Now that you're an adult, you have the chance to show your sister some love and make things right. There's always a way to reconcile.
I really hope this helps. Sending you lots of love!


Comments
I feel really bad about how I treated my sister when we were younger. It's clear now that she was just trying to bond with me, and I lashed out because of my own frustrations. Apologizing to her might help mend our relationship.
Reflecting on this makes me realize how much I've grown. I wish I could have been more patient back then. Maybe I should spend some quality time with her now, showing her that I care and value her presence in my life.
It's important to acknowledge the pain I caused my sister. I can start by talking to her, understanding her feelings, and expressing my regret for my actions. Building trust again will take time but it's worth it.
I need to address my own insecurities too. By working on myself, I can become a better sibling and role model for my sisters. Selfreflection and personal growth are crucial for improving my relationships with them.
Thinking about the way I acted towards my sister makes me want to be more empathetic. If I encounter similar situations, I'll try to understand where she's coming from and respond with kindness rather than anger.