Yes of course we can!
Do you know what makes us feel inferior really? is that you listen to them folks ... its good to listen to ppl but only those whom you trust and know very well how they care about you not just passing by ones who are envious and really need to put you down!
Being confident is not an arrogant attitude but confidence is mainly how you concentrate on your efforts to get things done that what teases others who are simply incapable to cope with you ...
Again, If you know you can do it then go brag with your confidence and let them talk and bark outside
All the best.