Is there a way not to use isp ?
You don't want to use an Internet Service Provider?
If you don't want to use your own ISP, than you can use e.g. a public WiFi, but just using Tor is enough, if you don't want your ISP to know, what you do on the Internet.
I remember a great quote by a top NSA Agent went something like "If we had a place were all the bad people can go or use like badguys.com it would be great! evil chuckles"
Umm think about it for a sec and then wonder why the NSA is not only hated for spying but placing back doors into encryption as well. We have not lost the war on privacy and a free internet yet. So please stop using "badguys.com".
I don't think, you know, what you are talking about.
Have you ever looked up, what exactly Tor is?
You also can't put a back door in an open source encryption. You can make it weaker, that it seems on first sight, but that is still not a back door.