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.
Thanks for your advice,Besides Hold I also invest ICO, what advice do you have for ICO lending now?
To be honest, most ICOs are shit and they end up scamming people. They raise money from people and then runs away with the money. Most of the ICOs fail to give a working platform, thus the community loses their interest and as a result the project dies. If you do invest on an ICO, make sure there are topnotch and well known developers on the team. Read the whitepaper and see what they have to offer.