They say "don't let perfect be the enemy of good". When it comes to blogging on a personal site I'd also suggest to embrace the "good enough" mindset. There are situations where you want to spend time fine-tuning your writing, choosing the perfect word, and rewriting the same sentence until it's perfect. I'd argue that a personal blog is not the place for that. Not because it's not worth it but because it's not really necessary. Personal blogs to me are more like conversations. When you talk to someone you don't say the same thing four different times until you find the perfect phrase. You just talk, you communicate and if something is not clear you clarify it.
I see way too many people online saying that they don't write because they don't like their writing and they don't think what they write is good enough. I'll call bullshit on that. Your writing is good enough. If I can have a blog and I can write so can you.