Weed has calming outcome at the beginning of use but once you have used it regularly it diminishes in power, so you need more to get some effect. Reason 1 for stopping: you are spending more money than you should. Spend your money on something constructive that makes your life better.
Once it is used regularly chemicals stay in fat tissue degrading slowly, this produces a contra effect when is not used, the things that bother you are just enhanced so if you are not using it they are there and if you are using it they are amplified. Result you likely get angry if you are not smoking. Reason 2 for stopping: its not weed, its your problem you wish to avoid.
After a long time you will develop anxiety due the lack of sleep and more contra effects you do not actually want unfolding. Reason 3 for stopping: you are degrading your physical health. And withit your mental health.
Instead of seeking dumb state, try to get active first, do some sport, adrenalin is of equivalent action, then concentrate on the REAL PROBLEM and DEAL WITH IT and GET RID OF IT. And if you wish to have a cool time, after some months of cleaning up (yes for weed you need at least 3 months to clear traces), you can enjoy it for fun sake occasionally. No point for weed if you are going to get depressed, as it was in the beginning.
What bothers me with your post that you are seeking other chemicals than weed, so you are definitively seeking a hard path. With this I detect you have already a serious problem, not with weed or x or whatever else you tried but with something seriously in your own real life.
Do not ask me how do I know. I've seen too many kids dropping of school, loosing friends, and ruining their life because they did not know when to call it OFF.
How to do it: First avoid all chemical variants, they are far more dangerous. Try to dilute your smoking schedule by not smoking on workdays, so you can concentrate in school and get some results while you can, so move it to weekend. And then work it out to skip weekends by getting some activity, so you can stay healthy. And finally try to avoid these weed weekends altogether. With gradual discipline you can get results of getting back to normal and on the way you may solve the problem that is bothering you.