Hi JP and welcome!
First, there are a lot of things that could be causing you to feel tired. Stress, not eating the right foods (aka, not getting the nutrition you need), or lack of exercise can all contribute to fatigue.
That being said, weight loss is a pretty personal thing. No one can say what's right for you. My experience has been that when it comes right down to it, though, there are some basic tenants that hold true for people who are successful at losing weight and keeping it off.
1. Eat whole foods with a focus on nutrient-rich veggies. This means shopping around the perimeter of the store and cooking for yourself.
2. Exercise is necessary. That doesn't mean that you have to go hit the gym. There are plenty of ways to get your exercise in without making it a 'workout'. Try playing a game of basketball, riding a bike, rollerblading, going for hike, go dancing, anything! Exercise not only burns calories, it also relieves stress. Studies have shown that stressed or unhappy people have a harder time losing weight.
3. Have a support system. That's why we're all here! Having people to talk to about your experiences (struggles, failures, successes, life in general) who understand makes all the difference in the world.
So maybe you don't need a set plan. Maybe you just need to make your own. Whatever you decide, stick around! You'll find what works