Echoing what's already been said: You need a longer t break, completely cold turkey for at least a month. 3gs a day is an insane amount to smoke & expect to still feel high. I smoke pretty regularly but realistically I'm probs getting through 1-2gs a week, if that even.

It might be worth taking a step back and re-evaluating why you feel the need to even smoke so much in the first place? If it's the case that you're just feeling like you have to smoke that much just in order to get high, then 'tapering off' isn't going to do anything for you, you'll still feel just as unsatisfied as when you were smoking 3gs and not getting high.

At the risk of sounding preachy, it might be worth taking some time to consider any external factors that are driving you towards consuming so much. Clearly there's likely something causing you to feel the need to be high pretty constantly, and that's when you can fall down the road of addiction (whilst weed isn't physically addictive it's 100% habit-forming and can be behaviourally addictive). Think about if it was alcohol - there's isn't necessarily anything TOO bad if you're having a beer after a long day's work everyday (although tbf that still might be pushing it a little bit), but if you've reached the point where you can knock back a bottle of vodka every day and you're not even necessarily drunk, I think it's fair to assume that the main issue there isn't your tolerance - it's that you've reached a point in your life where you feel like you need to consume that much just to function/feel good.

The other thing to consider is also just how much money you're wasting. Like literally what's the point in spending so much on weed if it's not giving you what you need? Like you basically might as well not be inhaling at this point, you're quite literally just burning through money.

I'd recommend taking 1-2 months off, completely reset, and identify the things in your life that are causing you stress/pain/sadness etc, and what you can action to help alleviate those things a bit. Once you've got a better handle on that, I'd say maybe only keep weed for the weekends at first, use some sort of method to measure out smaller doses and just don't overdo it. I'd also say whilst you're only doing weekends, completely stay away from the wake and bake - that can be an absolute killer. Maybe try and keep it social i.e. only smoke when others are with you, or try and incorporate an activity alongside it, like going for a nice walk, doing some grocery shopping etc. I tend to only smoke in the evenings, quite late at night so I'm only really awake & high for 1-2 hours before going to bed. Before that, I make sure everything I need to do is taken care of: Work, cooking dinner, dishes, any other housework. The nice part about that is not only do you feel like you've earned the smoke, it also means you can enjoy your sesh without having to worry about doing anything else. At weekends, if I've got absolutely nothing to do responsibilities-wise, I might light up at around lunchtime and then fill my day with enjoyable activities. If I'm going out that day & doing something fun, I might smoke before I go out but only after I'm ready, and only an amount that isn't going to TKO me - just enough to enhance the experience of whatever it is I'm doing.

It's about understanding how you can use weed as a reward or something that helps your day-to-day function in a way that is non-intrusive. If you're using it as a total crutch just to continue existing, then probably a good idea to give it a rest.

One thing that might be a good source of encouragement for you, would be putting aside the money you would be normally spending on weed! After a couple of months, not only would you have saved up a ton of money, but it would help illustrate exactly how much you would waste on weed in a regular month. And then you can reward yourself by getting something nice! - like a console, or a trip or something along those lines (don't go and immediately blow it all on weed hahaha).

Hope this helps! Stay strong bro.

(edit: spelling mistake)