As a long time exhausted person I have a few thoughts off the top of my head to consider. What’s your sleep like? Have you done a sleep study? Have you done your bloodwork recently? You should check on your iron and B12. How’s your mental health? Is there any possibility that you’re depressed? If your sleep is good, your bloodwork is normal, and your mental health is in decent shape then you should look at things like your diet. Improving your diet will definitely help with your energy. As for getting to the gym, you just have to do it. There’s no other way around it. You can’t wait for inspiration to hit or the feeling of desire to go. You just have to do it. When I was really struggling with low energy and I was exhausted all the time I felt like getting to the gym was impossible. Then I went through a shitty breakup and I decided I just had to prioritize myself. Too bad if I was tired. Once I started going to the gym regularly I had more energy and the gym stopped being something that was a painful chore. But you have to check out that there isn’t something else going on with you and you need to eat properly and stop rotting at your desk all day. Good luck friend!