If someone could advice me, how can I treat it seriously?

I know I have it, it's been three years, a physiologist has told me, the symptoms were showing since I was a kid. It has affected my whole life, even in the dumbest ways you can imagine, it is impregnated to me. It throwed me into depressive episodes and intense anxiety attacks. But suddenly in my daily life I just think "meh, is not that serious" or "maybe I dont even have any problem". Is this because social anxiety is very common? That I just feel like I shouldn't go to a proffesional because there are more severe cases? 
I cannot take it seriously, I know it's an anxiety disorder, which counts as an illness? I still don't understand how it is valid to me to go and tell somebody about something that is "easy" to fix as I have read before, it is equally valid as other forms of illnesses and disorders?