Don't turn this into a big project, Dave. Just 2 things you have to do.
1. Photos. It is your "opening line". That's what makes the sale to get them to look at your profile. Ask someone else to pick the right ones for you.
2. Make them smile/laugh. If they like your look and you make them smile, you're in.
If you want, you can copy a "bio" that has worked extremely well for me. Fell free to edit a few points that are obviously particular to you, but do not add to it. Do not expand and force more in. Replace words, not sentences. It is short and sweet for a very particular reason. Don't fvck with it.
"Power engineer by trade. Smart, down to Earth and very humble... oh, and I'm ridiculously awesome too!
My greatest strength is the inability to panic.
My greatest weakness is cheesecake. That sh*t is just straight up EVIL!"
In those few lines, you have a few, very briefly described qualities, an amusing sense of confidence, an interesting strength and a guilty pleasure that is not just your weakness, but one a lot of women will also share. It gives them something to initiate a conversation on a light note. It also later becomes a good segue to first date ideas, many times in which they will suggest it themselves. I've been out on so many cheesecake first dates I'm starting to consider picking another treat because I'm getting sick of eating it.
When you're done, post it and forget it. Check in once a day to see what it brings in. Respond only to those you are interested in. Ignore all of the rest. Move on and interact with women IRL in the meantime. If, for whatever reason, it isn't working, try changing your pictures first, rather than the bio.