A few things that may help. Do 2 months of consistent 3-5 times 1 hour moderate cardio a week. This will prepare your body for the more intense exercise you can start doing after the 2 months are up.
Don't wait until you are thirsty. Drink a mouthful of isotonic drink every 10 to 15 minutes minimum regardless of how you feel. Same for nutrition. Take a protein recovery shake immediately after you work out and then eat your meals normally. Also drink plenty of water after you exercise.
Don't wait until you are thirsty. Drink a mouthful of isotonic drink every 10 to 15 minutes minimum regardless of how you feel. Same for nutrition. Take a protein recovery shake immediately after you work out and then eat your meals normally. Also drink plenty of water after you exercise.