Oh EllieAnne, you sound so sad. I do hope you find a way to come around and feel more confident.
I'm afraid sometimes we women put our families ahead of ourselves so much that we do lose a part of who we originally were.
Try to find happiness in small things, even if it is in pleasing others, and try to do things that please you. Perhaps a trip to the library or bookshop to find a book on building confidence. Start by standing tall (good posture shows confidence), find one small thing to improve or change, and find joy in something every day. Even if it is a small item, like a blossom from your garden in a vase to enjoy.
Once you start to feel more confident in yourself, others will notice and perhaps not overlook you.
Please try, and report back to us.