Toilet training your puppy can be such a pain - I have instructed on this for years now and with patience and perserverance it can work! Trust me, dont give up.
Key times for your puppy to want to go to the toilet are -
When they first wake up either in the morning or after a nap
When they first see you - this might be an exciteable wee (dont tell them off for this one)
When they are running around playing then oops they may need to go