If you wish to hold some coin then use exchange only for during exchange. Just exchange your coin and transfer on your personal wallet that you have controlled. Specially you can use hardware wallet.
Because many exchange hacked buy hacker. Many people loss their capital by hack.
So please don't hold your coin on exchange for long time.
nicely isn't always really helpful for one to keep his or her coins on the trade due to the fact the change can be hacked at any time or the withdrawal of the precise coins you're keeping may be placed on hold for purpose satisfactory acknowledged to exchanger operators.