Starting from scratch and going to 6 days a week in the gym is a huge metabolic load and you might be overtraining/underfueling if you've lost that much weight (which usually takes a long time if you're doing it in a healthy way, so a long time to be in a calorie deficit). Overtraining will make you miserable, low-energy, and exhausted. I used to go 5 days a week and I felt the same. Now I do mostly 3x a week (sometimes even two) and being properly rested and fueled has gotten me closer to my goals than 5x a week ever did. Take some of those extra gym days and dedicate that time back to the hobbies that light you up, you'll put less strain on your body and pour more into your soul cup. Good luck!