Usually it takes time before it get listed on exchanges and you need to follow their telegram channel to know if they had listed on exchanges and then you can check the current price if it's good time to sell your token. Download a blockfolio apps on play store to monitor your token price as this is the best apps to track your crypto prices. Then, deposits or send your token to the exchanges wallet to sell your token...if you want to know how to trade.. you may visit YouTube as it has many videos for different exchanges.