I have created a form using Ninja Forms, where users give some answers for some questions and create a score. I have calculated the scores in Ninja Forms, and I need to update that score as a user field. I have created the field using Profile Extra Fields plugin. I've seen the Custom Form Action and Hook Tag part, but I have no idea how to write the code and implement it. Can you guys help me? Probably that's a piece of cake for you.