manual transmisson/ clutch on 2007 Subaru Forester

my 2007 forester is shuting off when i go to stop and push in the clutch to 1st gear. its also makeing a skircking sound evey time i push in the clutch

Sounds like a release bearing. Get it checked by a repair shop.

1 more answer
If you have installed winter floor mats then be sure it is not pushed up and stopping the pedal from going all the way to the floor.