First of all you need to login to your profile area, then click on the trainings tab

If the training you want is not immediately visible, then type the term you are looking for into the search area, found at the top of the trainings

EG: In this example I want to Link to my YouTube Training, so I typed YouTube in the search bar

Doing this brings up all the trainings you have for YouTube

As you can see, it brought up my YouTube Training

Now what you need to do is then click on the affiliate Link shown by the down arrow

That then opens up the affiliate link for the training, which is shown in the red box