Dealing with mean/harmful person

Hi everyone,

Writing here because I need help and thought you guys could give me good advice.

For context, I'm a 31 year old Muslim guy. Been trying to follow the Sufi path at my own pace. I'm very far from perfect (I don't think anyone can be) and trying my best every single day to be a good person, focus on kindness and avoid anger and trivial things. Not always successful at it but still trying everyday..

Recently (a month ago) I've started a new job that I quite like. I've been wanting for a long time. Since i started, I was assigned this colleague of mine who is supposed to be my "buddy" and help train me. The problem is that he is very mean to me.

At first I thought maybe that's the way he is in his tone so I brushed it off. But since last week I know for a fact that he just hates me and I have no idea why. He purposely gives me false information. Sometimes he'll refuse to speak to me, answer my questions about the job. And if he does pick up a call with, he would be very mean. He's told me couple time that I was not good for the job. The thing is that he is very good at what he does and management loves him so i feel a bit scared of reporting him.

I've been very tensed and stressed because of him now. I try my best to stay polite and avoid interacting with him but it came to the point he keeps me up at night .

How can I deal with this ? How can I protect myself spiritually and not let him make me angry or just ruin my life ? How can I ask Allah to protect me against his harm ?