Look at your various tasks as stepping stones in your career path. Actively looking at your work more positively will give you the energy you need to get it done.
Set aside time to read something every day. Whether it's a new fiction novel or a self-help guide, daily reading habits will inspire you in all aspects of your life.
It can be challenging to stay motivated if there's no reward in sight. Celebrate your daily wins at work and don't underestimate how gratifying it can feel to recognize tiny advancements.
Instead of waiting for motivation, start on your work now. Often times, the motivation will come after you've started!