The answer to 'my tree looks bad' is that there could be several common causes, such as disease, pests, environmental stress, or improper care. Symptoms may include discolored, wilting, or dying leaves; fungal growth; insect infestations; or structural damage. Solutions can range from pruning, treating diseases/pests, adjusting watering or sunlight, or in severe cases, removing and replacing the tree.
If the issues are minor, you may be able to diagnose and treat the tree yourself. However, for more serious problems or if you're unsure of the cause, it's best to consult a certified arborist or professional landscaper. They can properly assess the tree's health and recommend the best course of action.