Since you are new I would suggest you to learn first. Learn how the market works. Learn about the coins. Do researches on the charts. Get to know more about the coins you will be investing on. Use your own instinct and try to figure out how the coin is going to be different from others. And always keep this in mind - invest what you can afford to lose.
. As long as you know of what you are doing , just enjoy it. It iseems that it would be one of your experience in Bitcoin. Dont be afraid to lose because through it you Wjill learn a lot regarding bitcoin. You must know the right time to trade your coins. As you said that you have a lot of coins, try to trade and learn more later. If you you are good in timing then you Will gain a lot oh profits .