1. Do not invest money you cannot afford to lose.
2. Prepare yourself mentally that the money is already gone.
3. Be paranoid that someone is going to steal your money.
4. Don't put all your eggs in one basket
5. Don't trade on emotions
6. When you get profit, take out your initial investment and continue with profit.
7. Invest a portion of your profit in security (trezor/harddisk/laptop/safe)
6. Have fun
I can vouch for this. These things are important as a newbie.