Hasheesh of all types is haraam, whether it is marijuana or any other type.
Al-‘Allaamah Ibn Hajar al-Haythami said in al-Fataawa al-Fiqhiyyah (4/233), speaking of hasheeh:
The evidence for its being forbidden is the report narrated by Ahmad in his Musnad and by Abu Dawood in his Sunan with a saheeh isnaad from Umm Salamah (may Allaah be pleased with him) who said: The Messenger of Allaah (peace and blessings of Allaah be upon him) forbade all kinds of intoxicants and relaxants. The scholars said that relaxants are things that cause drowsiness and languor in the limbs. This hadeeth indicates that hasheesh in particular is haraam, because it intoxicates and relaxes, which is why those who consume it sleep a great deal. Al-Qaraafi and Ibn Taymiyah narrated that there is scholarly consensus that it is haraam and said: The one who regards it as permissible is a kaafir. He said: The only reason why the four imams (may Allaah have mercy on them) did not speak of it is that it was not known at their time, rather it only appeared at the end of the sixth century AH and the beginning of the seventh century when the Tatar state emerged. End quote.
Shaykh al-Islam Ibn Taymiyah (may Allaah have mercy on him) said in al-Fataawa al-Kubra (3/425): Consuming this hasheesh in solid form is haraam, and it is one of the most evil of haraam plants, whether a little of it is consumed or a lot. End quote.
Consuming intoxicants is haraam regardless of the way in which they are consumed.
Al-‘Allaamah Ibn Qaasim al-Shaafa’i said: What is meant by the drinker is the consumer, whether it is drunk or consumed otherwise, whether there is consensus on its being forbidden or there is a difference of opinion concerning that, and whether it is solid or liquid, cooked or raw. End quote.
Sharee’ah only forbids the consumption of drugs and intoxicants because of the great harm that they cause to the mind, soul, family and society. We have discussed some of these harmful effects in the answer to question no. 66227.
As for stress and anxiety, you may rest assured that the remedy for them is not to be found in smoking hasheesh or any other haraam thing. Allaah has not put the remedy of this ummah in that which He has forbidden to it. In Saheeh Muslim (3670) it says that asked the Prophet (peace and blessings of Allaah be upon him) about alcohol and he forbade him or told him not to make it. He said: “But I make it as a remedy.” He said: “It is not a remedy, it is a disease.”
If you want to rid yourself of anxiety, then we advise you to do several things, including the following:
1- Pray a great deal for forgiveness with proper presence of mind.
2- Do wudoo’ and pray, for these are the greatest means of helping oneself to be patient in dealing with hardship and dispelling worry.
3- Remember Allaah a great deal (dhikr), because this is a sure way to attain peace of mind and tranquillity.
4- Send a great deal of blessings upon the Prophet (peace and blessings of Allaah be upon him). In Sunan al-Tirmidhi (2381) it is narrated that Ubayy (may Allaah be pleased with him) said: I said: O Messenger of Allaah, I send a great deal of blessings upon you. How much of my du’aa’ should I make for you? He said: “Whatever you wish.” I said: One-quarter? He said: “Whatever you wish, but if you do more it will be better for you.” I said: One half? He said: “Whatever you wish, but if you do more it will be better for you.” I said: Two-thirds? He said: “Whatever you wish, but if you do more it will be better for you.” I said: I will make all my du’aa’ for you. He said: “Then your worries will be taken care of and your sins will be forgiven.” Classed as hasan by al-Albaani in Saheeh Sunan al-Tirmidhi.
This is in addition to avoiding the causes of stress and anxiety as much as possible. If the source of this anxiety and stress is worry about the future, such as how you will learn a living and so on, then you must think in positive terms of Allaah and sincerely put your trust in Him. Allaah says (interpretation of the meaning):
“And whosoever puts his trust in Allaah, then He will suffice him. Verily, Allaah will accomplish his purpose. Indeed Allaah has set a measure for all things”
May Allaah help us and you to do all good.