Not sure why at this moment.  :-( Please confirm that How to check the basic functionality works fine in your environment. It's a first thing you should test.

bro why i still got high ping dota 2

Please check your ISP first. When I checked RTT information recorded in Mudfish, it seems RTT stddev values to most of the mudfish nodes are quite unstable. It means your ISP has a network issue. For details please check http://ko.loxch.com/userrtt/?uid=215423 link.

what i can choose? idk rtt what the best in my area sir?

I meant that your ISP has some internal issue to the international internet line.  So with limited no. of mudfish nodes for your country, it seems it doesn't be helpful whatever you picked a mudfish node. :-( However if your ISP is okay, I think it'd be better to pick a mudfish node closer to your country.