Why do i get colds a lot? am i unhealthy or just unlucky?

Maybe a little: of both. The most common reason for frequent viral upper respiratory infections is repeated exposure: working/living in high people traffic areas, i.e. public transportation, malls, etc where a lot of viruses are shed. You may also have a minor immune deficiency making you more susceptible. Practice vigilant hand hygiene (lots of hand sanitizer, washing, awareness of sources); consider immune eval