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This is the outline of a guide compiled by 
Do not put more in cryptocurrencies than you can afford to lose
Buy and hold large-cap cryptos
Diversify your investments
Keep your private keys and account information in a safe place
If you do use cold storage- don’t move all of your money over at once on your first try
Make sure that you are sending your money to the right wallet address
In order to assure that you are actually logging into your exchange, and not a scam website that is stealing your account info, make sure you type it in
This is taken from The Ultimate Beginner’s Guide to Cryptocurrency Investing