Please be patient and build more content for your site. Don't get links for your site since your site is new. Wait for one or two months before you get more backlinks. Wait for another week or 10 days. It will get indexed soon!
You can ask the sellers to sell links from your site. Also you can advertise on your home page as you are ready to provide links from your site.
Since you have good traffic and good metrics guest post sellers will contact you. Please PM me your site url if you don't mind