I'm trying to end 6 text conversations simultaneously
Are you planning on ending all of your conversations this way?
Yes, I'm going to end all conversations today
It's unwise to overextend yourself and to try to do too many things at once, so if you need a break, you should stop texting.  However, your friends deserve to know what is happening, so be sure to communicate to them that you are going to take some time alone.
yeah sure, I can handle this.
You're doing the right thing by deciding not to text anymore for some time. Make sure to let people know why you're going to end the conversation.