I remind myself of how I want to see myself in the next 6 months. I remember why I started doing this in the first place. This helps me get up, put on my gym clothes and head to the gym. It’s perfectly okay to do light workouts, however, what’s absolutely mandatory is to show up.
Sometimes, it doesn't even have to be to your fullest. It is important to always start small. If you're a bit further along, be sure to remember that you don't always have to give it your all. If you did, you'd be exhausted. It's okay to take a day or even a week of just stretching or doing super light movement to get your day going.
I start by pushing myself to start. Once I’ve started, giving more energy to the workout actually feels much better than phoning it in. My workout ends up being longer, because I don’t feel energized after not giving it enough energy. So I end up adding more exercises on.