Try to find some time for relaxation. First, you try recovering your energy by drinking warm diet tea with a spoon of honey.
Try to get some rest and have a good night. By doing that your more likely to achieve better dreams. If your body is in shape, then advanced techniques can be used to perfect the training you might even develop stronger bones and grow taller.
Also, try to recover during off hours. Don't wander about or try to resolve problems during periods like after work hours or at bedtime. Don't spend so much energy on time wasting things like too many hours on video games. At max 3-4 hours a day should be fine. Increase the intensity of your training by getting up earlier in the morning to begin your fitness program. Once you get used to strength training it is much easier to access that potential bone growth.