Hopeful_Weather_6871's journey

I just received my first written warning at work, and I feel completely betrayed by a colleague. I'm 23 years old and have been working in recruitment for about eight months. A few months ago, my manager and team lead discussed areas where I could improve, but it didn't feel serious at the time. Now, I've been hit with a warning for several small mistakes related to attention to detail, and I'm really heartbroken about it. During a meeting with my manager and HR, they listed seven reasons for the warning, and it felt like everything I've done has been documented. I understand that I need to improve, but the way it was presented made it seem like I had suddenly become a problem employee. The warning will stay on my record for six months, which is intimidating. What hurts the most is that I thought I had a good relationship with a colleague, who is 33. We got along well, and I felt she had my back. However, it seems she has been reporting my mistakes to our manager, including a recent incident where I asked why I needed to interview a candidate twice. I never intended to question my team lead, but it was interpreted that way. To make matters worse, this colleague has recently been promoted, and I can't help but wonder if she used my mistakes to make herself look better. Now, I'm contemplating whether I should start looking for another job. I've never faced a warning before, and I'm worried this will impact my future opportunities. I feel uncomfortable about having to interact with her in team meetings, especially since I'm the youngest on the team. I know I need to take accountability for my mistakes, but I also feel hurt and blindsided by how everything has unfolded. I'm seeking advice on whether I should start looking for a new job or stay and try to rebuild my reputation. How do I handle my relationship with this colleague without making things awkward or giving her more reasons to report me?