Most important mistake for myself using margin
I am grateful for @paulsantori for taking time out of his day to chat about margin usage. Then I realized I didn’t talk about the most important mistake. There were times I couldn't withdraw cash out of of my wealthsimple margin during the entire weekend because I experienced margin calls that required me to sell some shares or I made big changes to my portfolio. This happened on several Fridays for me. The buying power was there to buy more investments, but the available to withdraw amount was still zero until the next business day or 2.
I make it a goal not to make purchases on my credit cards while I am using alot of margin relative to my collateral. I also like to make up to 2 withdrawals a month to try to fit my budget for the month. If I need to make big changes to my porrfolio, I just have to remember withdraw cash to another account before making changes.