How do u handle an overwhelming workload

I have a job that pays well with benefits, and in line with my passion. I can say I love my job. But the work load is too much that it sometimes gets overwhelming, I'm always busy and time moves so fast and the day ends when I haven't completed most deadlines (it's like more commitments keep coming up along the way). Quiting isn't an option for me because I need this money.

So, I'm asking for those I this situation..how do you handle the work load and also have time for your self? TIA