RE:These CIBCs who are causing trouble at TLRY with these ch"investing massively" is a mistake newbies make. Purchasing all the shares you can all in one shot does not leave you cash on hand to buy additional shares should the price drop from where you first bought.
If you chop up your total budget into smaller parts the you go in lighter with the option to add on a dip (or multiple dips). Once you hit your budget number you can go into hold + wait mode for the max time you are willing to remain in place.
When it comes to setting a budget I keep hearing $10k being tossed around, that's total nonsense for anyone first starting out. Think in terms of pay checks. Invest based on some multiple of your own paycheck (or just a portion of one).
If worse case happens then you lose X # of paychecks which you can recover over time but it's not crippling.
Short positions are for those with more money than brains IMHO but that's more than I want to type out right now
JMHO