Should you give up ? Maybe. Picking a field you're not interested in isnt helping obviously.
My suggest is if you're doing SEO, off a fresh domain, be patient. Domains take atleast 9 months to age. I would suggest waiting 10-11 months before calling it a total bust.
Unless you've already made up your mind in which case sell your domain and use the money to buy a domain in an area you're interested in.