This has been a ridiculously stressful week, full of people saying things they otherwise wouldn’t. I hid under my covers last night and listened to my heart, thumping so hard in my chest, and I wondered if there was one single thing I wasn’t in over my head in.
There is not.
Tiny Cat Pants 
I would imagine that you are not in over your head in your work life; you’re just running into the learning curve thing, and must live through it. I’m fairly certain that you aren’t in over your head in your writing life, either. I mean, I’ve read your writing and it’s good, and has improved over time. But the area of your life where I know for absolute certain that you aren’t in over your head is your friendships — I can attest that you do just fine with those.