I have been having an issue with trying different VPN protocols and couldn't able to connect. I am in china so I want a complete guide that can be helpful.

I think you don't know every VPN is not working properly in the China because of official restrictions by Chinese Government. By the way which vpn service are you using.

I am using NordVPN

You are still using Nord after heard that news it was hacked. Its up to you but I suggest Pure. It has different types of protocols as for users need. I share a link, I hope it will helpful for you. https://www.purevpn.com/blog/vpn-types/

Thanks it is really helpful

Than you should change your android phone, which phone you are using and the android version???
https://www.ometv.onl
https://www.chatroulette.onl
https://www.chatavenue.vip

I would recommend you to go with fastestVPN its work good in china

LOL at this BS thread

Try to use NordVPN. I am also using it