It depends. I've been wondering about this lately, and after doing some thinking I've come to a conclusion that kind of made everything clearer for me. Probably wall of text incoming.

So first of all, you gotta come clean with your long-term life goals, or: where do you wanna be in 10, 20, 30 years. I feel like once you seriously do that, things already become a lot clearer.

For me, I realized that my super life goal is to acquire lots of money (sounds silly I know, but its the truth). So what do I have to do in order to do that? Finish my university degree well. At this point I also realized that my life goal is a lot different from others. Some people are cool with a decent job and enough weed so they can smoke everyday. Thats entirely cool if its their way of living a happy life. But for me its not, and its important to realize that.

And once you've determined your long-term life goal and how you want to achieve it, it should already be easy to say how much smoking is good for you! But now, its time to paint the bigger picture, as your long-term goals are only a part of your life.

Next, you gotta think about your short-term life goals. These are numerous and they shouldnt be the obvious stuff like in my case "do good in uni" but more like stuff that makes you happy right here right now. So things like: staying fit, spending time with your girlfriend, spend your days stress-free or, you know, smoke weed.

After I realized these two things, everything just made click to me. You just gotta find that sweet spot where you can get EVERYTHING you need done, DONE, and then you can smoke however much you want.

Like, 2 months ago I used to smoke roughly every other day. And then I'd think to myself I should smoke less, and kind of force myself to do breaks only to start smoking a lot again after these breaks. After I put these thoughts into it, I smoke much less and it doesnt even feel like a sacrifice to me. Its more like getting your life in order.

On a side note, I feel like this posts came off quite negative, but I didnt mean it that way. Smoking regularly isnt even that problematic IMO. I used to do it and still get good grades in university. But being thoughtful like that turns weed from an "okay" drug to take into a "totally fine" and even beneficial drug to take, as it can relieve stress and help you focus incomparably well.

tldr; realize what your life goals are. smoke accordingly. ;)