I work out every day, aerobics and strength training and I am MUCHO healthy.

I'll bet I look better and am healthier than you will ever be.
Here, let me post another picture. Now, will somebody PLEASE tell me what looks over 40 about me? Bonzi says this is my best one, so . . .

I'm just not seeing how I look over 40, and, other than online, no one has ever mistook me for being older. Usually, people are surprised to learn that I'm almost 40, so I have to admit this is quite confusing for me, and I would certainly like to know if there is something I could change to make me NOT look like an old lady.
The quality of these pictures leaves much to be desired. Obviously taken in fairly low light, by a camera that isn't up to working in such low light.
I don't think I would presume to try to guess your age, based on these pictures. If you claimed to be 20, these pictures would not suggest otherwise to me. If you claimed to be 50, I'd say these pictures were believably of a 50-year-old who still looks pretty good for her age. If you claimed to be 60, then you'd be pushing it to convince me that these were pictures of a 60-year-old.
In any event, you're certainly quite attractive enough, and these pictures don't particularly make you look “old”.
If I were seeking female companionship, and if I were as superficial and immature as the OP, caring only about appearance, I would certainly not reject you based on these pictures.