Recently a friend of mine lamented to me about feeling badly about himself due to a lack of motivation. He assured me that he knew there were things that he should be doing and he possessed neither the energy nor the motivation to do them.
My advice to him was simple: How do YOU know what you need to do? Why do you believe you need to do something right now that your heart is certain it doesn't want to do right now? There is a time for rest and a time for work and a time and a purpose for everything under Heaven... the song goes something like that. If you're feeling a little low energy or unmotivated consider this your time to rest, and be happy resting.
Everything happens in due time. We cannot rush anything (and in fact that is a reminder to myself because I want stuff done and aligned yesterday for tomorrow). Someone at home may need you there, someone at your job may need you there, or you may need to wait for the alignment to be right, until the support for you that Source has planned is in place. You have soul contracts and you will keep all of your appointments, so don't fight with yourself but love yourself. (: When you are tired, then rest. If you don't want to do a particular thing, do something else until the time feels right. Prayer and meditation helps also and may offer a narrower path or a new direction entirely.
Do not fight yourself or turn negative feelings in toward yourself. Your body's cells deserve love and patience as much as anyone else's. You will keep all of your appointments.
Breathe in - hold it - breathe out, slowly... Breathe Your Sigh... of Belief.