Gunjesh Gaurav on "block fake ip, and rename wp directories"

hi friends,
i am using wordpress latest version, recently i have found to many hacking attempts on my site,and some fake google bots trying to crawl my website, there are many non exiting page error log visited by diffrent fake ip address and from diffrent country.i have blocked these ip address,but problem could nt solved, when i check error log, there are to many from diffrent ip or country, so i cant understand which ip should i block or not? for my site safety i am using sakuri and wordfence with firewall, i have already harden wp content, uploads folder and other.and disabled php file upload in upload directory,i also disabled theme editor and plugin editor to admin area. now problem is someone trying to analyzing my website, backdoors, or trying to find secret information,i know the trick of DDOS, Sql injection,so i need more security for my site, if i rename my wp-content to xxx,wp-include to yyy and plugins to zzz folder then? what configuration should i add in wp-configuration? then i think someone cant find any code easly, or any more ideas for safety?