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Exodus is fine for short term storage and trading, however any serious amount of crypto should be put in a MUCH more secure location than Exodus. Exodus might be the best hot wallet out there in many ways, but it is still somehwhat valnerable. That said, exodus has hardware wallet support on their development roadmap so in the future exodus might end up being the best thing out there full stop.

i think we should not keep our currency on 1 exchange site , its very risky , i opt for exodos for minimize the risk

There is still risk, especially if you are using a windows computer. A ledger Nano S is pretty cheap, why risk it?