The answer to 'how to clean gutter yourself' is to use a gutter cleaning kit and follow a step-by-step process. This typically involves using a ladder to access the gutters, then using a scoop or trowel to remove leaves, twigs, and other debris from the gutters. You'll also want to flush the gutters with a garden hose to clear any remaining debris.
It's important to take safety precautions when cleaning gutters, such as wearing gloves, using a stable ladder, and having someone hold the ladder steady. Cleaning gutters regularly, typically 1-2 times per year, can help prevent clogs and water damage to your home.