gas price and gas limit question

pardon me, I am new to eth. I gathered up some ethereum and now I am trying to move it to one place about $160. So I have two things on MEW wallet: transaction fee 169.00 Gwei and Gas limit set to 21,000. This costs me $6.6. I am wondering is it possible to lower it? I don't mind waiting for few hours/days. I am just trying to not make some horrible mistake here. Edit: Also the edit Gas button on MEW is broken so I cant edit the "169 Gwei"