Why my website is not getting rank?

[alexmurphy1122]

I can understand my website age is a big issue but now I want you to help me. I have been doing guest posts for increasing the domain authority but no good result. I just want you to let me what should I do next? AmazeInvent

[GastonRiera]

Hi Alex,

Actually, the website age is not that big of a ranking factor anymore. You can rank in the top positions with a website a few months old.
Also, with just guest-posting is not enough to rank high.

I'd suggest you take a deep and comprehensive read to the Moz's beginners guide to SEO. I think that there are quite a few things to optimize that you are missing.
For example, title tags. You should make them more descriptive and focused on the main keyword/phrase you are willing to rank.

Hope it helps,
Best luck.
Gaston