How to stand out while there have a million of sellers

[graphicsgenisys]

I'm here with Fiverr for around two years. I have a lot of knowledge about graphic design like logos, Business cards, Flyers, Posters, Brochures, etc. I created some gigs over this product but I didn't stand out my gig withing over a million sellers. That's why I didn't get any buyer messages and anyone didn't hire me. After a couple of months, I was going with no job with that type of product. Even now too I don't get any messages from buyers to buy my graphics-related product. I was hopeless about my family's survival because I had no domestic jobs at all. Then, this Forum helps me to get stand out from other different products that have fewer sellers.

But I have knowledge of graphic design and I am thinking I have to use my knowledge and have to earn more money from freelancing by using knowledge with proper use.

 Are there any possible or best tips for standing out with graphics-related gigs over million of sellers?