That depends on how hard and how fast you want the process to be. As a general rule, working with a professional you found on a place like Right Path Fitness is always going to be easier than trying to learn everything about fitness on your own. That becomes doubly true when you consider that many personal trainers also have training and certifications related to nutrition, so they can help you figure out both your diet and your exercise routine to put together an optimal plan to help you achieve your fitness goals.
And of course, the main role of a personal trainer isn’t to give you a list of things to do. I would argue that the biggest role of a personal trainer is being able to spot problems with your current training and implement course corrections accordingly. It’s one of the main advantages of getting personal training.