Fighter with Kineticist Dedication

Hello all, is this idea any good? Basically you play it like an armored character with really accurate attacks, followed up by a kineticist impulse?

Fire: Flying Flame, and blasts?
Wood: Timber Sentinel, or Free Shields forever?
Air: For utility stuff?
Water: For Deflecting Wave, Winter's sleet for the difficult terrain,
Metal: free shields, and some aoe strikes