When someone tells you, you’re moving too fast. Tell them they aren’t moving at all, you’re the only one that understands why you’re moving fast, because it’s only you that understand what you need to do next.
Others will doubt and question your pace, but do not stop, because every time you stop, doubts sinks in, doubts that leaves us to question our quest.
The people that question your quest only make you stronger; they make you believe more in yourself, but sometimes can be the opposite.
Do not make them cloud your focus, they will be pain, they will be failure, but believe in yourself and maintain the right attitude towards your goal.