It’s actually recommended to hire a professional SEO company to do your optimization, rather than attempt to do it yourself. That’s because you can learn how SEO works, but the lack of experience can make all the difference in the world.
Furthermore, SEO takes months to show results. This means you wouldn’t know whether or not you’re doing the right thing. You could wait for ages, only to realize you’re doing something wrong.
Trying to do this optimization yourself isn’t just a waste of time, but it can also become a waste of money if you invest in useless tools.