Should you pay for writing resources? No! The internet is full of fantastic free software and websites to help your writing. Take advantage of them whenever possible.
Here are a few of my favorites:
Bhooks — Fantastic way to get feedback on your writing. Or find some great reads! Read, write, or share feedback. And make friends with like-minded people. https://bhooks.com/
Writing It Out — Excellent blogging guide for writing and editing. https://howto-writeitout.blogspot.com/