The process of fine-tuning your previous posts consists of three steps. You should repeat those steps continuously and make it an ongoing part of your content strategy. It will be worth the effort.
Example of a scenario:
It's usually tough to get going and easy to be overwhelmed by all the data you have. However, by using this guide, you'll have a better chance to set a standardised way of thinking and create routines. Hopefully, it will help you lower the barriers a bit.
Good luck!