meeting my fiancé's father(long)

Raeanna
I don't know how to start this. I just need to write about it. I'm freaking out a little bit. My fiancé's father is coming up for the first time to where we live with my fiancé's grandmother. I've met his grandmother a few times although it feels like she doesn't exactly like me. She's extremely rich and my family has always been lower class almost poverty level. I don't think she thinks I'm right for him. Now on top of this I have to meet his father for the first time. My fiancé hasn't seen his father in about 10 years or a little more. He's been in jail and my fiancé is also terrified to see him. I want to impress his grandmother but I don't know how to. I just feel like some poor little charity case when I'm around her. She lives in a huge house in Las Vegas and we're living in a small one bedroom shitty little apartment in a small town in Pennsylvania. I just have super low self esteem and suffer from horrible anxiety and panic attacks. My head is just going nuts. Any input would be greatly appreciated.