Want to rank number one in Google

I have a website with around 30 targeted keywords. The age of the website is about 3 years and i was properly doing SEO for the website for the past 3 years. Most of my keywords ranked in the 1st page of Google's SERP but eventhough some of my keywords are not ranked in the top 50's. Can anyone provide me the solution for this?

Yes, you can send an e-mail to [email protected] tell them that you are not satified with their service and for that reason want or better, demand them to place your keywords on the 1st spot.