Female competition?

[Babycakes6]

I work in a male dominated field and had my share of dealing with misogyny. After 20 years of this, I finally got some female colleagues who are 20 years younger and new graduates but still I was so happy that my industry is changing.
I tried to mentor one but she said she is fine and wanted a senior male to mentor her instead.
She asked our director to check my work, didn’t stop until she got her way and then started screaming at me saying my work is bad quality, not up to standards but she herself has never done any work! How can she give a constructive criticism if she never constructed anything. And she loves criticising me!
Why does a girl who is half my age, hates me so much? I’m shocked. She sees me as competition and imitates whatever I do. She also always checks/ wants to know what I’m working on and tries to get on the project.
Also I noticed that if I’m a friend with someone in the office she tries to compete for that person/ tries to befriend him/her. Is this bullying?
I feel like I’m back in a high school, which is just ridiculous I have a daughter who is about to start high school!
I don’t know what to do. I started looking for another job. I have never been picked on at school, I was always popular with girls and had a lot of girl-friends. I did have girls competing with me for a certain guys and my mum thought me to blame a buy so I would always let go in such a case, blaming the guy.
I’m not beautiful (I was when I was younger) or rich. I don’t have something that a younger girl would be envious of. I just don’t understand. Why would someone go so viciously after me when I was being nice and try to help her since Day 1?
I had a few female friend in the past which tried to compete but they were few and far between.
Why does she want to compete with me is beyond me. We are not alike, two totally different generations, experiences, personalities. Please help! This is so crazy!

How did you get to be 45 without dealing with a few workplace conflicts?
If she's screaming your work is a joke at you, that's highly unprofessional, and as her manager you should be making that clear.
Or if you're not the manager, you should be telling her manager.
Is there no feedback process to relate her performance to others?
Someone shouting abuse at another staff member is grounds for HR to be involved.
This is nothing to do with her, or you, being a woman.
Do you struggle to deal with people in other areas of life?

Why is she picking on me and being super friendly with all the males? What is going on?

How on earth would we know? Maybe she is a misogynistic little cow. In order to find out you must follow proper workplace procedures and raise the issue with your line manager, outlining specific examples of her behaviour.

“Why is she picking on me and being super friendly with all the males? What is going on?”
Who knows?

Why aren’t you discussing it with your line manager?

What is going on here and why?
I helped her with everything she asked and offer to be her mentor for the Chartership. Was that offer somehow offensive? Did it belittle her? Why do women pick on other women? How is this NOT a feminist issue?
Also if you can’t help me answer this please don’t comment at all. I don’t need comments like ‘you are bad manager’ (when I’m not managing this at all) you might want to say my team is under a bad management!
Also other comments like I’m generalising women- I am not. I’m seeking help with female bullying and if you don’t think it’s a feminist domain then just simply don’t answer. Thank you

You are not feminists you are bullies like her.

For the 100th time I am not her manager

You have had loads of advice. This largely consists of go to your line manager and/or confront the person in question.

I have no idea why she is behaving like this and nor does anybody else. Some people behave badly at work. That is why there is a disciplinary process. Surely you know this. Is there a reason why you do not want to follow the appropriate channels.

I know you are not her manager- you have clarified this. Does she have What obstacle is in the way of you raising this officially with her manager or HR?

Why do you not want to go through your line manager, OP?

What is there to struggle to understand. I am reading about female bullying and it said in 90% of cases it comes from the jealousy. My work is hard, very responsible and not that well paid, nobody wants my job!! Nobody could possibly be jealous of me. I can’t believe this is happening to me and I’m tying to figure why and how to avoid this in the future.

Line manager.

Where does it say it comes from jealousy? I don't think that is true at all and I would ignore any sources that say it does. People bully for all sorts of reasons- men and women. Anyway, we won't be able to magically work out what she would be jealous of. The point is that she is behaving in an unacceptable way and you need to do something about it. That will involve going to HR/ her line manager.