What will be your next steps if your SEO methods or technique does not work?

I will review my strategy and if doesn't work i will shift  to another one

First of all, let me list down all the channels from where you can bring in visitors to your site.

Organic
Social Media
Direct Visits
Paid Advertising
Email Marketing
Native Advertising
And the list goes on...

If your SEO fails and if you do not want to go back to that same lane again, then consider marketing your website using the other channels mentioned above. SEO falls into organic channel, so you can exclude that and try others by Google-ing about them.

While there is no tried is tested methods when it comes to those other channels of marketing. If something works for you, doesn't mean it will work for others or if something works for others, it will work for you.

Social Media
Direct Visits
Paid Advertising
Email Marketing
Native Advertising

change seo strategy