Hey,
I would say you are on the right track by adding meta titles and description, but they alone wont help you move higher. To improve your ranking, focus on making your product pages more helpful for real users. Add clear product details, benefits and answer to common question. Make sure your site loads fast and works smoothly on mobile. It also helps to links to your product pages from other relevant pages on your websites. Getting a few genuine link from related or trusted websites can boost visibility too. Lstly, good images, customers review and easy navigation will create a better experience with Google values. And if you keep improving your pages and give it some time, your ranking can gradually improve and reach the first page.