future career

assalamualaikum...
My ideas of the perfect career is in advicer of marketing. I am going to become advicer of marketing for the three reason. First, i am exciting to learn mathematics and part of counsellig in marketing islamic banking. Second, i enjoy to see many types of people and solve their problem about marketing services or so on.Third, i also want to create own business for my future. However, i was worry because i am a shyness and nervous person when i see and talk with other people expecially man. So, right now, i must learn and practices to become brave and confident in frount of peoples. This is one of the way that i will success in my career.