Once you are done with all the basic exploitation tutorials and trainings, you should get this one.
The training is amazing
Peter is one of the most knowledgeable people for the subject and it shows from the first minutes. The content is great, organized and has a great learning curve. It builds up until everything is very clear on your head regarding windows heap exploitation. Once the training is done you feel like you are one step away from researching and building your own exploits. All it remains is to dedicate time to do it. You are going to have all the tools and knowledge needed.