I have an important phone call to make and I'm having really high anxiety about it. Coping strategies?

I need to apply for obamacare by 12/15 and I’m locked out of my account since I don’t remember my password or security question answers (and I’m verified through that account so creating a new one isn’t an option).

I have to call to figure this out. I hate phone calls. But I’m super anxious about this one because the deadline is really close and I have to have insurance in January for somethings I need done then (+ I’m high risk for a detached retina).

I should call right now (24/7 hotline) but I can’t get the courage to. I’m just really scared this isn’t going to go in my favor so I’m being avoidant.

Help me to make this phone call.