It might help if you post a photo of your table.
We put a sheet of glass on our heavily used wood furniture tops to protect them. You raise the glass off the table surface with small flat plastic "dots" that the glass shop supplies.
I understand that not everyone here will agree with our solution. We love the look of natural wood as much as everyone here. We raised our children around nice wood furniture, many of them quite old, and have seen the results of not protecting them.
We put glass on wood dining tables, dressers, nightstands, and desks. I just asked Spouse, and she agrees that knowing what we know now, we would not change a thing.
* Rectangular draw leaf table with leaves extended.
As a surprise for my spouse, I replaced the glass top about two years ago. The old glass top had accumulated a lot of scratches from over 25 years of everyday use, including family meals, plus homework, projects, etc. If memory serves, the cost of the ~36 x 58 inch replacement glass top was around $60.
* Shaped glass top on draw leaf table with leaves retracted.
This table seats 4-6 closed, 10 open. My spouse made a paper template that we brought to the glass shop. We also have less expensive cut-to-fit acrylic tops (not shown). They go on the extension leaves for the rare times when the table is extended. The acrylic tops level the extension leaves with the glass, and are hidden under a tablecloth in use.