Every time i typing I have a voice saying every letter I typed how do I turn this thing off!

Sounds like you may have Voiceover turned on. Check Settings > Accessibility > VoiceOver. Turn it off.

Also check Settings > Accessibility > Spoken Content. Turn it off.

Try going to Settings > Accessibility instead.

How do I stop Siri saying every word I type also where is accessibility in general?? All my family is saying to go to general > accessibility.