If it's about school, my motivation right now is getting 1st place from my class.
If it's about money, think that your time so valuable, so many internet money schemes exist.
If it's about depression:
''Your skin is not paper, so don’t cut it,
Your neck is not a coat, so don’t hang it,
Your size is not a book, so don’t judge it,
Your life is not a film, so don’t end it.''