Here is a meditation you can do to call your energy back and replenish yourself.
Sit in a chair with your feet on the ground and eyes closed.
Take a few moments to breathe.
Now imagine a golden ball above your head, like a glowing sun.
Reach up with your hands, and actually feel this ball above your head.
This is your own spiritual energy, that is always there for you to bring into your body.
Imagine this golden sun as a magnet, which calls back your energy from wherever you left it. As it calls your energy back, it becomes bigger, like a giant planet above your head. Call it back from past events, from people you talked to, from you work, from thinking about the future, etc.
When you are ready, reach up with your hands, and pull this golden ball into your space, filling you up with your own energy, all the way from your head down to your toes. Your entire aura and body gets filled with your own pure energy. You can repeat this until you feel "full of yourself" :-)
With Love, Dania