My nose is two different colors at the bottom and top. It also isn't straight. Can this be fixed? (photo)

Yes, your nose exhibits multiple deformities contributing to the asymmetry. In addition to the asymmetry of the bulbous tip cartilages, you have an "inverted V deformity" suggesting a collapse of the upper lateral cartilages coupled with a needed in-fracturing.of the nasal bones. The color variations your nose exhibits can be approached using either IPL or laser treatments.

From the Limited photograph it demonstrates a bulbous nasal tip, and an inverted V deformity and wide nasal bones. A revision rhinoplasty can accomplish improvement in all 3 of these areas. The color of the skin will be best treated with intense pulse light therapy, not surgery