Who's putting you down? If it's someone else, it really doesn't matter. Your own self-confidence will ride it out. Anything others send your way will just roll off your back.
But if it's you who's putting you down...you have immense power. You can make yourself feel incredibly small. And you don't even need any help. But there is no reason. Like everybody else, you have both strengths and weaknesses and you should have confidence to follow both, eager for success, aware of failure and ready to face both, knowing that they are both steps on any journey.
What is confidence?
Your love for your real nature.
The destruction of your negative thoughts.
The transformation of imagination Into reality.
Don't let the person closest to you hold you back.
Anyone who ever gave you confidence, you owe them a lot.