re: Soil test showed “Very High” in just about every element!

Would be helpful to know the specifics.just post a pic of your soil test results.

In general, a lot of fertile places and Louisiana are very high in most micronutrients and micronutrients, which is great. It's usually on an issue if you are trying to adjust pH that sometimes can been difficult depending on what your high in.

Otherwise most likely you'll still need some fertilizer for nitrogen and it's unlikely you were high in nitrogen unless you took the soil sample after you had already fertilized.