I have done so many research on how to write a perfect buyer request. yet not getting any response. i also have strong portfolio.
You’re in an extremely competitive category. You said you’ve researched making offers? How many offers have you sent implementing what you’ve learned?
Try getting unique and attractive Gig images. You’ll surely see an improvement. Keep an eye for your Gig data to see if the impressions and views increase.
And lastly, get rid of all those duplicate Gigs. Fiverr will penalize you with a much lower ranking if you have repeat gigs which are similar to each other. Best of luck.