In my quest to stop looking so rubbish I've stopped drinking ( had an amazing effect on skin and weight loss), sorted skincare, haircut and colour, regular shellac nails and wardrobe detox. Hair removal also sorted. Now looking at teeth. Mine are crooked, yellow and there's a prominent crossover at the front. I've saved enough to get invisalign and whitening. I know it will make a big difference to how I feel (currently hate photos being taken etc) but am worried it won't work or something. Any experiences please?