Socialization is important. You find a socialization card for dogs on this page. It gives you an example for various experiences and situations which you can offer your puppy or young dog.
Socializing is a process of recording and processing; every dog does this at its own pace.
For puppies and rehomers, I recommend choosing something to do three or four out of seven days. Your dog needs the other days to process all the experiences. So give your dog plenty of rest in between.
Young dogs and adopted dogs first need time to get used to the daily routine and structure of your household. Safety and a sense of security is essential for every dog; Only then can you learn new things. So take it easy. Find a balance between repetition and giving time to process.