Knowing your limits is important any time you let something have access to your pleasure centers, from smoking to gaming to joyriding the micro-g waves in the Kupier Belt. Or whatever you kids are into these days.
Compare your habit and its impacts on your hobbies and activities. Start with just one hobby. You could use anything, a task or a chore or whatever, but we'll use biking.
Assume you are sober, which of these thoughts is most likely?
Now, there's some nuance to it. Hobbies change on their own, you don't need to jump to blame weed for every change in your behavior. But if you look close at the motivating factors of your decisions, you can usually see if weed is playing a part.
You can live a good life that way. But there are lots of people who make getting stoned their whole life, and they aren't particularly interesting or fun people to be around.
The last thing I want to point out is that daily users have high tolerance. Even if you use cannabis regularly, it's good to take a break from time to time to bring that tolerance down and enjoy a full-bodied high.