You are your own worst enemy when it comes to editing. There’s a psychological term for this that escapes me right now, but it boils down to mind games. Your brain will look at errors and automatically correct them or fill in the blanks.
Can You Read This? by Chris McCarthy (Study@ecenglish.com)
I cnduo’t bvleiee taht I culod aulaclty uesdtannrd waht I was rdnaieg. Unisg the icndeblire pweor of the hmuan mnid, aocdcrnig to rseecrah at Cmabrigde Uinervtisy, it dseno’t mttaer in waht oderr the lterets in a wrod are, the olny irpoamtnt tihng is taht the frsit and lsat ltteer be in the rhgit pclae. The rset can be a taotl mses and you can sitll raed it whoutit a pboerlm. Tihs is bucseae the huamn mnid deos not raed ervey ltteer by istlef, but the wrod as a wlohe. Aaznmig, huh? Yaeh and I awlyas tghhuot slelinpg was ipmorantt! See if yuor fdreins can raed tihs too.
Whether you are self-publishing or signing with a publisher, you want the best editor you can get. Constructive criticism is hard to take these days. It’s not intended to beat you down. An editor is the invisible person behind you who honestly has your best interest at heart. An editor can shape your manuscript from the ordinary to the best product possible. Yes, it can be frustrating and take a while, month and years.
But, there are options there, too. If you don’t like your editor for some reason, ask for another. You can always go out on your own, but remember good editing is expensive. Yes, your first-grade teacher or next door neighbor, friend, or spouse can always look at it, but is that in your own best interest?