<human>: I promise I am not thinking of robbing a bank! 

Recently I found out that my best friend I had gone to school with/grown up with was arrested for robbing two different banks on consecutive days. 

Apparently she passed a note to the teller saying she had a gun and telling them to give her money. I highly doubt that she was actually armed, but I realize that doesn't matter here. 

I don't know how much money she got as the news didn't say but the fact that she did it a second time makes me think it wasn't very much. 

If it matters she is in her early 20s, had no prior criminal record at all, no drug addiction (that anyone noticed), and everyone that knows her is absolutely shocked. She was a college student with a fair GPA and an OK job. We went to well-respected and religious schools known for their strictness. She had done a ton of volunteer work. The local media found out her alma mater and is turning it into a "look at the snotty rich kid who thinks she can get away with anything" type thing, which I bring up because that kind of narrative could create pressure to give a harsher sentence, maybe? She is not white and was a scholarship student. I don't know what happened, but I know she was having trouble paying her bills and had to take out a lot of student loans. 

I read that bank robbery is a federal crime, which I assume means there will be a harsher sentence? 

This is in California. I will post the county if it is relevant.

Give me the gist of the text in a nutshell
<bot>: Old school friend robbed two banks in a row, no prior criminal record, early 20s, how long of a sentence should I expect she get?