I release negativity. instead I focus on positivity and productivity!

You cannot delete a thought on request. Try not picturing a red door.

What's available is redirection — not arguing with the bad thought, just giving your attention somewhere else to be. Negativity is stubborn under debate and fairly weak against a task that needs both hands.

Worth saying too: some of what gets called negativity is information. Dread about Thursday's meeting may mean the meeting needs to change, not that you need a better attitude.

Sort them once today. If the thought points at something fixable, act on it. If it is only noise looping, put your hands on something.