How can I improve ranking in Google

Hi Friends, Please me to find out this answer, I am little scared, I am losting my website ranking day by day and enable to find the reason what happing with me or my website. Every day 2-3 keywords lost from google. 

My website link is below, Please let me what should i do ? 

https://www.creaseart.com

I am not sure if the issue is related to JotForm. I see that you have only one form under your account and the form has no fields. I would suggest you contact your website SEO expert.

In case, if you are facing any issue related to JotForm, please provide more information.