It's been a month of trying to improve myself, and I feel just as miserable as I did before.

First off, I want to say congratulations. Why? Because there are plenty of dudes out there who don't even care to improve themselves. Change is going to be hard, but that's what men do: the hard stuff. The 2nd piece of advice below is HUGE because it is a leverage point. It is a small area that can be influenced for HUGE results.

Second piece of advice that you may be neglecting is a general monitoring of your health. YOU NEED TO SEE A DOCTOR. The fatigue, disinterest, and "barely functioning" may be a medical condition that might need to be addressed. You might be depressed, you might have a gland issue, or it could be any number of underlying medical problems. Taking medication is not weakness. You can focus on reducing dependence on medication on down the line, but you need to get the ball rolling. (If insurance coverage is an issue we can address that too.)

DON'T Even worry about the third piece of advice until you have followed the 2nd.

The third piece of advice I can offer is to focus on one goal/thing at a time. Listen, I know that changes happen super slow. What's worse is that society has conditioned us to expect to be able to change multiple things at once. You just can't do that. It may be all good and well until you get overwhelmed by the magnitude of changes that you are making and just crash. How then are we able to change? Focus on one particular goal. OBSESS over this goal. Secondly, you need to break down that goal into a series of habits. These habits have to be scalable. For example, if your goal is to write a book you can't just expect to be able to sit down and write for an hour a day everyday. You have got to start small. First you set a regular time for writing. Maybe its early in the morning. If you want to start a regular writing habit, start writing for 5 minutes a day. (If you find its hard to write for an entire 5 minutes just scale back to 1 minute.) I promise it will feel silly at first writing 1 to 5 minutes, but this is where most people just quit because they can't see the point. Once you are consistently writing each day for the allocated time frame, slowly increase the time you write in small increments. These changes need to be made slowly. If you practice this over the course of several months, you may find that you have developed a strong daily writing habit.