Should I deindex and tell search engines not to index my tags and category blog pages?

I launched a site last week that I am using to test the waters on some new techniques and the site was indexed about 2 days ago. I submitted a site map for my posts, pages, tags page, and categories page.

Here is my problem (Also keep in mind I have built no backlinks). My category pages are ranking for the keywords that my posts should be ranking for. As an example.. Let's say I have a post with the keyword "This is my really long keyword". When I search Google for this keyword one of my pages shows up which is nice that I'm already on the 4th page but it's not my post page targeting that keyword. It's my category and tags pages where the title/keywords of each post are. My category and tags pages are ranking for keywords that I want the posts them selves to rank for. I am also using an EMD (exact match domain) and when i search my domain one of my category pages shows up rather than my root domain.

Should I deindex and not allow search engines to index these pages? The tags and category pages? I am worried I am spreading my keyword juice around to much by having these keywords on other pages as well. My onpage SEO is fine.

Note: I would hate to remove my category drinking games pages from index as I am already on second page of google for a few of my category pages. I know this may be the "honeymoon" but I know these pages will rank now.

Thanks in advance your help is appreciated!