How to buy Dynex coin?

Can you guide me through the process of purchasing Dynex coin? I'm a bit new to the world of cryptocurrency and would appreciate step-by-step instructions. Where can I find a reliable exchange or platform to buy Dynex? Do I need to set up a cryptocurrency wallet first? Are there any fees or commissions involved in the purchase? Also, is there a minimum amount I need to invest in order to buy Dynex coin? Lastly, what factors should I consider before making a decision to invest in Dynex?