Proofreading
When your work is ready for proofreading, the first two people who should read it are both you.
Read through it. Then read through it again.
You might find something to correct or adjust. Could you miss something? Surely. That’s why having someone else read it is prudent. But to write a piece of text and immediately hand it to someone else for proofreading? That’s just lazy.
Do the first couple read-throughs on your own.
It might seem tedious, but if you’re not interested enough to read your own work, what does that say about the writing?