Even if you’ve had writing workshops and lessons, it’s often helpful to have a reference resource.
One of my favorites is Literary Devices. I found it one day while trying to justify the use of Polysyndeton and explain to a friend that they really weren’t true run-on sentences.
While the trend is for short, staccato sentences, there is beauty in the flow an prose of a long sentence. When used appropriately and sparingly, it can put rhythm into your writing and make it sound hurried and rushed if you want action. It can also stretch out the pacing when used properly. It’s a flexible device.
Literary Devices has plenty of examples and definitions of diverse devices that you can use in your writing.