Can't stop smoking weed?

Hello, im 19 and i am a heavy weed smoker in fact it might have caused me a few problems atm, i am almost constantly always paranoid, i just finished collage and now summer has started i noticed up to the last half of this year i havent been able to stop smoking weed, im from ireland so i use to drink a lot but it never my life so much, i am unemployed and am really concerned about the future because i can't find work in the economic status, and over here jobs are hard to come by, atm it just feels like my life is ****** and there is no way i can change this, so is there any point to stop smoking weed so much? Or is this all paranoia built up from being way stressed and smoking to much?