i cook a lot of chinese food. I have a book called chinese cookery masterclass which has never failed me.
One quick suggestion is making a sweet and sour sauce base which you can then quickly make dishes with. You boil rice vinegar (white wine vinegar is fine), add brown sugar, then ketchup (seriously!) and a dash of soy. Let it reduce a bit.
Makes a brilliant base that you can do all sorts of stuff with. stir fry, onion, ginger, chili, garlic, dragon fruit / pinaple, chicken, bit of honey and add the sauce base and you have an amazing kung po with very little effort.