You already know what I’m going to say: “Trying to stop” isn’t stopping. Here’s the reality: Not everyone reacts to marijuana in the same way. You may be especially sensitive to it. You may be one of the people who develops a psychological addiction to it, even if your friends don’t. Because marijuana is largely unregulated, it’s possible that something toxic was added to what you’ve been smoking.
You may be able to function now but that is likely to deteriorate, especially if you aren’t sleeping regularly and well. It is possible the sleep disturbance is at least part of what is causing the delusional thinking.
So quit fooling around. STOP smoking. If you can’t do it on your own, then look for a support group or a therapist to help you. You already know that smoking is having a negative impact on your mental health. Love yourself enough to get whatever help you need to get weed out of your life.
I wish you well.