I have been in crypto since 7 months, it doesn't look so long time but i have had really good experiences which i would like to you share with you.
1) Never but never share your private key .
2) Never but never share your private key .
3) Never but never share your private key .
4) Create 2 or more e-mail accounts for airdrops & bounty.
5) Create new twitter and facebook account. They should be similar to orjinal.
6) Join Telegram & Reddit.
7) If you haven't any experience on trading commodity exchange before, away from short term & daily trading on crypto.
Your first investments should be less amount to cover your fails and mistakes easily and it will not damage you.
9) You should be improving yourself by reading articles about projects, ico's and market regulations.
10) Try to learn technical analyse at least basic level.
11) Do not share your KYC randomly, just share on reliable exchange markets.
12) Try to pick up big exchange market for trading , especially which has huge volume.
13) Save your investments in cold wallet.
14) Keep your all passwords on paper which is hand written.
15) Finally, Golden rule; Be Patient.