Advice Please: How do I stop Starting all my Sentences with Pronouns?

I need your help! This writing malarky, as we all know, is blooming difficult. Not only are we trying to craft a robust and compelling story, but we need to write it in a varied and engaging way. It is hard!

I don’t know about you, but I have found that in my writing it is easier to notice when something is wrong, than when I’ve done a good job. Those pesky errors stand out like a Kindle in a bookshop.

One error I keep finding in my writing is that I start so MANY sentences with “She”, “He”, “Character Name”. 

I am well aware that this is a sign of immature writing and I’m not afraid to admit that I have a heck of a lot to learn. That’s why I love reading about other writer’s processes and advice. You are all making me a far better writer.

So I wonder, do any of you have some top tips for creating variety in your sentence starters? Have you written a blog post about it? I would LOVE to gather your wisdom, and I plan to write a blog post about it, linking to any bloggers or posts who have some useful tips. Thank you in advance.