If you make a big impression the first time, it's likely to have a better effect. Some puppies need more. It's helpful if you could enroll in a puppy class designed especially for young puppies in order to get the proper guidance, because it's sometimes difficult for a novice trainer to recognize when aversives should be escalated. If you are reading the puppy wrong, increasing aversives could actually make the problem worse instead of better. You should not find it necessary to get aggressive with a young puppy.
Simple restraint is usually enough to get the message across.
Absolutely do not use any stiffer discipline without guidance from an instructor. An example of overkill is the alpha roll. Most young puppies simply do not need that level of discipline, and you can really damage the relationship by using it.