I’m struggling to generate spin on chips

Many pros now use a wider swing when chipping. This creates a shallower angle of attack and gets the bounce working so the club glides through the grass. If you push your hands forward at address, that gets the ball skipping and skidding rather than spinning. So, at set-up, have your balance on the inside of your left foot, your sternum over the ball and your feet narrower than for a full swing.