The answer to 'my drainage system looks bad' is that a poorly functioning drainage system can be caused by a variety of issues, including clogged drains, damaged pipes, improper grading, or inadequate capacity. Symptoms may include standing water, wet or muddy areas, eroded soil, and even water intrusion into your home.
To address drainage problems, you'll first want to inspect the system to identify the root cause. This may involve clearing debris from gutters and downspouts, snaking or flushing pipes, and checking for any breaks or blockages. If the issue is more complex, such as poor grading or the need for additional drainage infrastructure, it's best to consult a professional landscaper or drainage specialist who can assess the situation and recommend the appropriate solution.