Where on my income tax form do I put deductions for my nursing license renewal and the cost of my continuing education credits?

As a self-employed nurse they go on Schedule C.   As an employee you can not deduct. 

https://ttlc.intuit.com/community/credits-and-deductions/help/what-is-the-2-rule/00/26650

If you are a regular W-2 employee, none of that is deductible, any more.

Even in the "old days" (2017), it was only an itemized deduction subject to the 2% of AGI rule.