Prayer is the key. To be productive in everything we do , we have to set our priorities right. I will pray first thing in the morning to thank my creator and to commit my day into His hands . If I decide to start with exercise , of course , God wouldn't punish me for that , He is not human , but then I can be distracted if I wait till my exercise is done . In this world ,So many temptations arise immediately we rise from our bed , so we need to do the holy things first to keep being sanctified.