Re-optimization of article for SEO

Hello, I am new to blogging and I am thrilled to have found such a wonderful tool to help me realize my vision in starting a side hustle as a content creator. So far I've enjoyed the article writer tool and applied the recommendation to use it as a template to then edit and add my personal touch. After a complete the edits I've noticed that I end up with a lot more content than anticipated and I am concerned that now my articles no longer optimized for SEO. Is there a tool or combination of tools already in place that you can suggest to “re-optomize” the article? Or can a new tool be created where you can just upload a Sheets or Word doc of the edited article and it re-optomizes it? Thanks in advance and keep up the great work!