How do I get a true perception of myself? How attractive am I really?

Hi! I don't want to be obsessed with myself or narcissistic...I really hope I'm not. But I genuinely wonder about this so I decided to come on here and get the honest truth from people who don't know me...how attractive am I truly based off of the way people treat me?

In public, I always make eye contact with people and 8 out of 10 people smile at me and or say anything to me even if it doesn't make sense, in passing. I am a waitress and pretty frequently get told that I am beautiful/remind them of someone they know or famous etc. I do not really get cat called that often, though. Men will sometimes double take and sometimes call me honey, darling etc but only if I'm interacting with them. People always are very curious about me and my life and sometimes ask very personal questions when they don't know me at all. All of this pretty much started when I was 15ish yrs old. However I can remember only twice in my life where someone said that I should be a model or look like a model...my sister has had many people say that to her and she is so beautiful. I know she is prettier than I am. And I'm happy for her! I have gotten jealous before but have worked on that character flaw because confidence is important.

I have a hard time creating true female friendships. Although I always try to be as kind supportive and caring as I can. I often feel like most people see me as different from them and do not try to relate with me like I see they do with other people. That what makes me feel like I need to know what it is about me that causes this...or if this is all normal for an average girl in America and I am just overthinking it all?

If anyone has advice or input for me or can relate, it would be very welcome! Sorry for the rant! Much appreciate any insight. Thank you!