Worry and doubt focus your thinking on what you don't want. Rather than
worrying about the bad things that might happen, direct you actions
toward making positive things happen.
Complaining can also get your mind sidetracked into thinking about what
you don't want. What do you complain about? The things you don't like.
Rather than complaining, take action. Action moves you towards what you
do want.
Anger is one more way to get your thinking negatively directed. Rather
than getting angry about what you don't like, use that energy to give
you determination for what you want to achieve.
Keep your mind positively focused on the good things that life can
offer. Those things will grow stronger and more abundant in your world.