First of all T am a women who has never done this why do I have to take iff the overflow?

You snake from the overflow because its easier. Less turns for the snake to make.

Hello Plumet I agree with Horold see the image below, Thanks.

John

Hi Plumet and welcome to The Plumbing Page at ANHD.com. You're responding to a 5 year old dead threads so I gave you one of your own. Please check the date before you post. Thanks

Unscrew and remove the overflow plate,(The one with the drain lever) and pull out the tub stopper. You now have a clear shot at the trap. The way you were going in through the drain it ran you square into a tee that you can't get around. Now feed the cable( 1/4" best or 3/3" with a small tip. You can rent a Ridgid K50 sink cable.) About 2' down you will run into the bend of the trap. Crank and push at the same time to work around it. Your blockage will be found in the lateral pipe going to the stack. You shouldn't have to put out more then 10 or 12 feet. I have found tub and shower clogs to be mostly hair and the worm should auger into it and pull it back. After you snake pour a few pans of boiling water down the drain. This will loosen the grease and flush the mess out into the main. Hope this helps and thank you for rating my reply.