well...picky dog..10 weeks old still cannot eat hard food..maybe u can try to boil the chicken n blend it..blend till like mud..sure ur dog will love it..but dun give too aften..later ur dog will expect this kind of food everyday..give like once a week will do..
what food are you feeding ur golden? 10 weeks old is not really called picky. more like not used to whatever ur giving "maybe". Avoid switching food around often. No human food ie table scraps.
leave the food there for 10-15 mins, then remove it. do not leave it overtime for many reasons. ie insects and bacteria growth, more importantly, ur pup will think food is always available, thus taking this time to eat.
If ur pup is unable to bite the dog food kibbles due to the hardness, try soaking it in some hot water first then when it's warm to the touch let ur pup eat it.