Scooping the ball results in a toe shot because it causes your left wrist to bend at impact and your right wrist to straighten, thus changing your swing radius
The putting grip should be in the lifeline of your left hand instead of in your fingers and underneath your heel pad like in the regular swing
Practice your entire swing in super slow motion, this will allow your mind to focus on the correct muscle movements needed instead of trying to make your brain work on the correct movement while you are swinging, just do it don't think it