Do I need to change all my coins to ETH or hold the coins until their price go up? What will be the best option for now?
Just keep all of your tokens, but you can try to liquidity some of them into ethereum to get the more guarantee for your asset. As far as i can see about all of the markets in the green area. You should not feel worried about that.
I think that the price all of your coins will be going up asap. You just need to become a patient person.