Dear Anna,
I’m really sorry to hear about the difficulties you’re facing at work. I completely understand how stressful it must be, as I went through something very similar last year.
In my case, I had ongoing disagreements with a colleague who constantly criticised my job in front of others. It made the work environment uncomfortable and affected my confidence. Eventually, I decided to address the issue directly by having a calm, private conversation with him. To my surprise, it cleared up several misunderstandings.
I would suggest first speaking to you colleague openly but professionally. If that doesn’t resolve the matter, consider discussing it with your manager or HR department. Keeping a record of incidents might also be helpful. Most importantly, try no to take it personally.
I’m confident you’ll handle this wisely. Let me know how things go.
Take care,
Lorena