All the tips in this topic are great and very informative, should be compulsory for new crypto users to read and apply it. I would add one more tip:
Don't use closed source wallets, and especially never store large amounts of money in closed source wallets
I really agree on this. Users should have the control of their private key. There is no need for third trusted party like exchanges. This is why users shouLD be discourage to store big amount of money on their exchanges account because they don't have the full control of their own funds. After trading, one must transfer the funds on an open source wallet which gives security and transparency like what I also use called Hodler wallet.