Oopsadaisy.. I think I forgot to answer your question. ;-)
I will just say this. If you are losing friends because you are mistreating them, you need to ask yourself some serious questions. What is behind the anger and 'grumpiness' that causes you to say and do unkind things to friends.
If it is a mood disorder, you need to see a doctor for a referral to a psychologist or psychiatrist (depending upon whether he feels you can be helped immediately by counseling (- psychologist) or whether you need a more formal diagnosis, or tests to establish any underlying psychiatric conditions. When you go to the doctor (and please DO go to a doctor) you must be completely honest with him or her about everything. If you have a history of abuse during your childhood, or some traumatic incident has happened for which you've never received any counseling, then TELL him (or her). If you aren't eating well you need to be honest about that too. (Many teenagers have eating disorders and keep it a secret out of fear or shame. The imbalance caused by unhealthy eating or purging can lead to severe depression and mood disorders, that is why it's relevant to mention here).
More seriously, if you are taking ANY drugs, it is highly likely that you will be affected psychologically by this, in a bad way. At just 16 you are still a child, your body and brain is still developing. By adding drugs into the mix you are inviting trouble. I always worry when I hear of children taking substances because the consequences to a young person are so very much more severe than to adults who are fully grown. It is highly likely that if you smoke marajuana or take benzos or any other kind of medication for recreational purposes, that this would be enough to cause mood disturbances.
Somebody made a comment about presuming you take drugs because you wouldn't be here otherwise.. I do hope that you don't feel you must take drugs in order to come to this place. This site should be accessed by young people in it's harm reduction capacity. It's a place where you can be honest about whatever it is you are doing, and you won't be judged or get in trouble with your folks. But I would hope that NOBODY here would condone you - at just 16 years old - taking drugs of any sort. Not pot, not benzos, nor even alcohol on any sort of regular basis. If you knew of how vital this is to a young person whose brain is still in the stage of growing, I think you would take me very seriously on this. Please, if you are - then STOP! It could f**k you up for life in ways you never thought possible. Please trust me on that.. I've studied extensively in that area of anatomy (the human body) and pharmacology (drugs - medicinal or recreational, and the effect of them on the body).
Hormones all by themselves could be causing you to be moody or have outbursts, and to treat other's badly because of irritability on your part. Drugs will do this too, with even more devastating effects than on your social life. Further, drugs can actually bring on a psychiatric condition if there is a predisposition for it (and even if there isn't). Sometimes the results can be permanent, ie, large quantities of MMDA can cause life long depression, and psychedelics can alter the wiring in the brain to the point where a person can have delusions and hallucinations long after the trip! There is so much to learn and to know before putting substances into your body. - one of the reasons this place is a good source of knowledge when someone would otherwise be too ashamed or embarrassed to seek out valuable information.
I hope I have helped you in some way. I don't mean to preach.
Wishing you all the best sweetie.
R
PS.. feel free to PM me.
PPS I'm not sure if you are male or female. Doesn't really matter I suppose.