Smoking regularly is very bad for you, and so is drinking regularly.
Weed is not physically addictive but it can be extremely emotionally addictive.
But, that's probably not what you wanted to hear.
Just because I want to feel high sometimes.
I hope you understand the concept of physical tolerance. It will make you feel high for a little while. Then your body will begin to tolerate the substance, and you will need it just to feel normal. Normal will be like your current high. As tolerance increases, you will need more and more just to feel OK, and the negative effects will increase.