My sister practiced kissing on me (6-7f) while she was 4 yrs older than me

I’m a 27 year old female now but when I was about the age of 6-7 my sister would kiss me on the lips. I vividly remember laying down on my bathroom floor (which she told me to do) and would just tell me to relax. She is 4 years older than me. I also remember one time I really wanted to kiss her and she said yes. I think it was a game to me at that point. She had left for a moment and I got naked. I remember she came back and said to put my clothes on because our dad was going to take us out to eat. Those are the only moments I remember but my mind might be pushing down other similar moments I had with her. I’m struggling now to have a relationship with her. She has never talked about it, but I feel like she remembers. It’s so hard to speak to her without getting annoyed or frustrated. She is annoying to me and never communicates well, she tends to always ask a question when asked a question. She’s never wrong and is hard headed. At this point I feel like I need to speak to her about this and distance myself to heal. I don’t even know what I want but I just don’t want to feel this way.