Do toi think I've created a "Mary sue" character?

I heard of the expression a "Mary sue" character, and if toi don't know it's a character the auteur (these are often found in fan fictions) has created that are seemingly perfect that everyone likes and is good at everything with almost no flaws. I'm afraid that I've created one.

So tell me if this character I've created is coming off as a "Mary sue"

The girl I've created is named Jennifer, [I just a dit I'd name her the first name I heard and that was it] she can play the guitar, is a pretty good singer -but only because she took lessons- and can dance alright, as well. But she can't ballroom dance, has a bit of a shopping + drinking problem, (She's not an alcoholic but she gets REALLY drunk when she does) she has abandonment issues, hates rats like there's no tomorrow, is VERY stubborn and is a bit of a wimp. The manliest thing about her is that she works out a little. (which she does mostly to hang out with a guy she likes) She's a pretty good size, but is no Barbie. Her past isn't all daisies and lollipops, but she's really a nice girl. She can get jealous easily and is a bit emotional. She's a charming girly-girl.

Another girl I have created is her adoptive sister... I'll tell toi about her, too. This young lady is named Regina and is a Cree first Nation. SHE'S the one I'm most worried about...

She is exceptionally beautiful, (Cree women were known to be so beautiful that they were stolen par neighboring tribes, so this is logical) is really good at singing, dances a Cree dance very well, and is respectful. It seems like she's a "Mary Sue" to me sometimes... But I haven't completely developed her yet, I need to figure her out myself. I do my research... Cree people were taught back then (she was raised like "back then" but takes place in the present) to be respectful to everyone and speak only kind things to one another and if somebody did otherwise they were seen as kind of a mean person to be avoided. So that's just how she was raised... That