I'm 26. I started a new job 9 months ago, my previous jobs were lower paid jobs not in my field so this was my first job in my field. It's working in a busy, fast-paced environment (think PR, advertising, marketing). I am good at the actual work (producing content), but I struggle with the social/people aspect.
I have anxiety, and lately think I may be on the autistic spectrum or have complex PTSD from childhood (my Dad is likely a narcissist, or at least very emotionally unstable and angry). As a result I'm a people pleaser and struggle to say 'no', so at work I struggle to say no when people ask me if I can help with something, even if I'm really busy. I also treat 'when will X be done?' as 'why isn't X done yet, you're too slow'. I'm constantly afraid of being fired, I was convinced I wasn't going to pass my probation even though I was getting told by the head of my department how they had heard very good things about me/my work.
I have now, I think, burnt out. I don't want to use the term 'burn out' because it's only been 9 months, and I feel embarrassed by that. I think it was triggered by lots of little things slowly building up, I had a colleague off for two weeks so my workload increased a bit, I changed accounts so there was that to learn, and my manager has been pushing me to do some presentations (internal and external/to clients) which is something I am really anxious about. I couldn't focus on my work and was crying all day everyday, my nerves felt frazzled and I had a deep sense of dread. I've now been put on anxiety medication and have been signed off work for 2 weeks.
This absence, along with other absences due to illnesses, now puts me above the trigger point for absences and I am terrified I'm going to get disciplined or fired. I am worrying about it constantly even though I am meant to be on sick leave to help my anxiety. I know deep down that this isn't the job for me, but I'm now convinced I've messed everything up because I'll have poor attendance and a potential dismissal or disciplinary on any future references.
The worst thing is work are very supportive. My manager is approachable and supportive but I struggle to speak up about anxiety, I'm a very private person. Everyone around me is coping with the workload and fast-paced environment so I feel embarrassed that I can't.
I don't trust my decision making skills at the moment as everything feels hopeless, so can I ask: if you were me, what would you do?