I need some serious help with my twitter account plz !!!(i really need help)?

[-Me !]

I have a twitter account and i use it to vote on http://www.pollpigeon.com ! everytime i vote for a poll it will show up as a tweet ... so i deleted the tweets (not all of them ) and i deleted my account but when you search on google :(my name ) twitter i will be the first account in the search and all my tweets are under it (even the ones i deleted) ... so plz how can stop this ... is there a way to reactivate your twitter account and change your privacy ??? what can i do plz help
Thxx i will be thanksful if someone helps