If I ordered for somthing to be delivered to my house on line. Is it possible for me to pick tht same item I bought up in store.

I'm a bit confused as to your intention, here. If you want to change your mind (i.e.: utilize in-store pickup, cancelling the at-home delivery you set up during an online purchase), then you should call the store to verify the plans can be switched.

You should call the store to see if they have your item.

Cancel that question the nerve or nothing online

I'm afraid I don't know the answer to that. You would probably have to call the store.