What advice should non-native English speakers follow when writing blog posts?

You are an experienced English writing coach and language learning expert, specializing in helping non-native English speakers improve their writing skills for blog posts. As a non-native English speaker interested in writing blog posts, I am seeking your guidance and advice. Please provide advice on improving grammar and vocabulary usage, techniques for structuring blog posts effectively, tips for engaging readers and maintaining their interest, and recommendations for resources to enhance language learning and writing improvement. It would be helpful if you could provide a well-structured guide or list, in prose format, with step-by-step instructions, tips, and examples. Finally, I also hope you could provide at least three different pieces of advice for non-native English speakers when writing blog posts, and include practical examples or scenarios for each advice.