I've been in a job for 15 years now. It's a job, I get paid very well for doing what I do. I've been doing the same thing for 7 years. But it's not a career. I've learnt a few things in the past two years just dabbling with the help from other team members and the opportunity has just come up for a career job in the same company. It's a skilled position which I'm about 30% knowledgable on. The rest I will be mentored in. Since having my two children my anxiety has been through the roof. I've developed an under active thyroid so this can be a symptom. I have ok days and bad days. This job came up and I had a lot of people told me I'd be good for it and it's guaranteed mine (not getting my hopes up because it isn't mine until it's mine). But I felt pressured into going for an interview. My head says "oh no I can't do this, all that responsibility, I don't work well under pressure" but my heart tells me I'd be crazy not to go for it, I'm getting left behind if I don't, it's the next step. Now I'm so worried I won't be able to cope with it. And it's making me really anxious. I can't stop thinking of how stressed I'll be and I'm going to make myself ill. I think I need help, my brain doesn't work the same way it used to. I used to be so confident. I don't want to let this opportunity go but I also want to feel ok. What is the best help?