I have a difficult time typing because the curser keeps jumping around and goes back and adds letters. I have to undo
my typing every other word
If you are on a laptop, try to turn off the touchpad to see if you are resting your thumb on the track pad causing it to move.
This is a common issue that most touchpad have a driver option to avoid. It is called disable touchpad when typing or similar.
In the future it is best to start your own thread.