I am not getting any buyers. What can I do to promote my gig properly?
Welcome to the Fiverr forums.
I would recommend improving the gig before you try to promote it. The images are all over the place. The design category is too crowded to make a single gig that’s vague. You offer “T-Shirts, Logos, Posters, Infographics, etc.” You could try making a gig for each of those, so that you can have samples for each.
Check out the Tips For Sellers category: You’ll find hundreds of threads offering advice on a variety of things to consider and/or improve. (Note: not all advice can apply to all gigs or categories, and be sure you check multiple sources as there are some false tips.)
It takes a lot of work to make it as a freelancer, so be sure to research and plan accordingly.
“If you fail to plan, you are planning to fail.” (Attributed to Benjamin Franklin)