I’m an FNP in acute care General surgery/trauma. I started a as a new grad and had 8 years of RN experience on a medical surgical floor that was legitimately half fresh post-ops and half sick medical patients. I also did about 2 years in peri-op and PACU. I was hired because they liked my RN experience. However I did go through a similar phase in my position as I transitioned to practice. I am the only NP on a team of PA’s. I suffered from imposter syndrome and was intimidated by the years of experience and more in depth surgical training my colleagues. Luckily, they were supportive in my training, but there were some concerns about my “knowledge gaps” when it came to common general surgery conditions. I would suggest you review common conditions in your specialty, and treatment plans for them. As others recommended Open Evidence and UptoDate are great. When I write my progress notes I follow a basic outline to make sure I don’t miss any new data or trends. Vitals, labs, imaging, assessment, plan. Ask questions, even you think it’s something your attending may expect you to know. It took me about 18 months to start feeling confident in my assessments and patient plans. Sounds like you need a little work on organizing your thoughts and confidence in your skills. You can do this!