Gain trust with a local dealer of yours, depending on who you are this shouldn't be too hard. I met a dude and he trusted me with this method the same day.
Tell him you can get him sales and ask for a front. Obviously you have to make him trust you since he is giving you his weed to sell.
If he fronts you a half (14 grams) lets say for $170 MAX you can make $280 on that if you resell them by grams.
If you dont want to resell you now have weed to smoke for free Happy
BTW don't be a dumbass and get caught selling. Sell to only people you trust.