How do you keep your energy?
jacquesm: The size of your 'battery' may simply be 60 hours per week, pushing yourself beyond what you can naturally do should be done slowly and with your finger on the pulse looking for signs of trouble.If you want to suffer what people call a 'burn-out' then try pushing yourself harder and longer than your body can normally sustain, the results are not pleasant, it can take years to recover from something like that.Your body giving your a warning sign - tiredness - is a pretty good reason to slow down a bit.One thing that comes to mind is that you may have an iron deficiency or something like that, that's easily checked.