Fiverr GIG ranking and Promotion

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These things I do for my GIG promotion.

1. I promote my gig in social media.
2. Recently I spent some money for Facebook ads (But it didn’t help much)
3. I hire a guy from “fiverr” for gig promotion also didn’t work.
4. I created a new gig and use The recent keywords to see if that gonna help. But again its not helping to ranked my gig.

Now can u guys please tell me what else should i do ?