Sorry guys how do I reply to my own post

Reply to your own question like what you asked here, You can't they disabled that option. It used to be a thing but some morons lost their shit and got it removed. You also can't reply to yourself, if you started a thread or comment on another page you have two options: 1.You can edit it and add in any extra information you missed or wanted to revise. 2.You can wait for anyone else to reply to it, then reply to them, as long as someone else has done that.