Hey Its another person who bought their impreza without knowing how to do 5 speed.
Just like me!
Well I live on a hill, and the only way to my house is up and down several hills, all with stop lights so my first few days were hell.
Everyone told me to ease out the clutch while giving it a little gas to save the clutch, they were wrong. If you're trying to learn, i'd say give it gas, when you're used to the clutch engagement, then you'll naturally find yourself easing off the gas as you engage the clutch.
practice alot of starts, also starting while facing downhill on a very low grade hill may help. your car will start to roll alittle by it self then you can ease the clutch while getting on the gas.
Sorry it's so long and confusing...
I'll stop here.