If you don't like it by episode 9, just stop. You can finish the season, as I think it has a strong ending, but it doesn't seem like it's your cuppa tea.
Personally, I thought the writing and the ability to portray the many different perspectives of the 'drug war' in Baltimore absolutely fascinating. Especially since each character is fully fleshed out and... ah, it's not important.
Don't feel bad for not liking things that many people like. You're allowed to do that.