How do you handle a fast-paced work environment?

It is all personal skills. You must adapt quickly. Everyone uses their own methods

Application of technology perfectly.

Keep pace with this development and technical speed

Learn to multi task. 

Agree with experts comments, Just to share the famous quote from SIMON SINEK " Working hard for something we don't care about is called 'stress'. Working hard for something we love is called 'passion". If you have the passion and right attitude we can manage any situation or environment. 

1. Be flexible
2. Take breaks when I feel like I'm  becoming stressed
3. Adapt to any changes

Thanks to all your answers