fixing sentences

I need some help on this one section in my vocab book. There are a few sentences where I'm not sure if there's an error or not and where the error is. Please help. Here are the sentences:

During track season, Samantha and my statistics are usually identical.

To make cookies, blend two sticks of margarine with the vanilla and sugar until the sugar has dissolved.

The club encouraged many women in the community to join, including Patricia and myself, even thoughwe had only recently moved to town.

Thanks so much :)

[Ann1977]

During track season, Samantha and my statistics are usually identical.
> This means that your statistics are identical to Samantha herself.
During track season, Samantha's and my statistics are usually identical.

To make cookies, blend two sticks of margarine with the vanilla and sugar until the sugar has dissolved.
Sounds all right to me.

The club encouraged many women in the community to join, including Patricia and myself, even thoughwe had only recently moved to town.
> ME ME ME! They encouraged ME to join. They didn't encourage myself to join.
> "me" is the object of "including."
> Myself is a reflexive pronoun
> It is not an escape hatch to avoid the use of the word "me"
The club encouraged many women in the community to join, including Patricia and me, even though we had only recently moved to town.