Do you think I should get mammograms earlier or be tested for the breast cancer gene?

If you are. 45, you should already be getting mammograms according to ACS guidelines. If you have a strong family history, genetic testing might be appropriate, but talk to your doctor about it.
Why? Do you know of a family risk pattern of breast cancer in a first degree relative (mother, sister, daughter)? Yes you should be having yearly physical examination and mammograms after age 40. Ask your doctor if you should have genetic testing (brca testing).