You mentioned that you’ve read Fiverr Academy yet this is your gig description.
Why do you think that 2 sentences with poor grammar will get you sales? Any buyer who sees that you didn’t bother to even write a proper description will hit the back button. 5 months = 2 sentences
Start with the basics. Get a proper gig description, consider using a video and try to get external clients or use buyer requests. You mentioned that you advertised in social media, but if you don’t have enough followers or you advertised to a group of people who don’t care about your service then it has little to know value.
Freelancing is not for everyone and that’s OK. For some people 9 - 5 job is more suitable. A freelancer needs to know how to sell his/her service. It doesn’t matter how talented you are in design if you don’t know how to sell it. If you see that it’s not going anywhere then focus your energy on something else.