If you have been using marijuana frequently, it can cause a lot of problems like anxiety, restlessness, fearfulness, etc. The most important thing is to stop it, along with stopping alcohol and any other drugs you may be taking.
Next Steps
Consult a psychiatrist with experience in deaddiction, who will be able to help you.
Health Tips
If you begin to feel suicidal or hopeless, consult a psychiatrist immediately. Usage of any drugs of abuse/ recreational drugs can cause or trigger mental illness. Marijuana also acts a gateway drug, meaning its use can make you more susceptible to try other drugs.