I'm losing my sense of morality. I think there is no wrong and right what shall I do? Is morality universal or changing by culture and time? Why in some places where homosexuality is labeled as immoral but in 2020 they seems acceptable, that makes morality useless if its changing

Allah has cleary shown us what is tight and wrong in the Quran and the examples of the Holy Prophet (s). It is up to us to learn these and enact the teachings in our lives. We ask Allah to guide us to the straight path so clearly there is a path of good and we ask him to keep us away from the path of those who have gone astray. The status of morality is set by the Quran and Ahl ul Bayt (as). Just because some people begin accepting haram actions does not make it ok

How to practice mindfulness in Islam? Where you are the one who are controlling your mind and thoughts

Being mindful in Islam is to be aware and know that at all times that Allah is watching what you are doing.

My faith in islam is low. I have a lot of doubts but every time I find an answer for a doubt, a new doubt arrives what should I do?

Keep studying the beliefs and eradicate doubts. Knowledge is the key to eliminate the doubts. Ask Allah to help you as well and to grant you certainty.

https://www.al-islam.org/principles-faith-usul-al-din-husayn-wahid-khorasani

1) Is there a difference in doing ghibat (backbiting) and use of bad language in the holy shrine and at home? Would there be any difference if someone uses bad language in the shrine and at home? Wouldn't the punishment be same?

2) Wouldn't the crime be exactly the same? Like, wouldn't God not be pleased in the same manner? Because, at the end of the day, God is everywhere. Wouldn't he judge the person in the same way as any backbiter? My friend says that he can behave badly at home but not at an sacred place. Is this true?

3) should this be used as an excuse to backbite at home?

1) There would be a greater severity if done in a sacred place rather than at home.

2) There is a difference of doing a sin in private then going out in public and sinning openly. The latter is corrupting society which is another sin in itself. If a person drank alcohol at home privately this is a great sin but imagine someone drinking alcohol while at the Holy Kaaba for example. This would be of a greater magnitude.

We have similar in regards to good deeds. If someone prays at home it is good but isn’t it better to pray in vicinity of the Holy Kaaba or one of the shrines of Ahl ul Bayt (as)?

3) No one should make excuses to justify their committing sins

What is the rulling on travelling after the noon prayer to a city 35 km away from my own city and coming back after the fajr prayer.

If you leave after Zuhr time then you continue your fast. If you return the next day you have the option to not fast because you’re traveling. However if you return before Zuhr time and have not done any of the fast invalidators then you can start your fast.

I have a brother who has left Islam. I have trouble even looking at him now. Must we keep good relations with family members who have since left the faith?

Keep relations with him, but at the same time do not condone what he is doing. The late Ayatollah Dastaghayb Shirazi wrote in his book Greater Sins: “If Sileh Rahmi towards a Kafir (disbelieving) relative, in some way, strengthens his conviction towards his own religious views; or if Sileh-Rahem towards a sinful relative provides him with opportunity and encouragement in his unlawful ways, then this kind of Sileh Rahmi is forbidden. In fact, if Qat-e-Rahem induces a disbeliever to introspect and reconsider his disbelief, then, Qat-e-Rahmi is obligatory on us. In the same way Qat-e-Rahem is obligatory if it discourages or dissuades a relative in his sinful ways.”

I want to ask if by mistake the Holy Quran falls down from height by mistake than what should be the kaffara if any.

There is no kaffara for this action.

Why did Imam Hasan (AS) marry Jada bint ashat ibn qays even though he knows her father ashas was an enemy of Imam Ali (AS) and fought again Imam Ali (AS) in Nahrawan?

There is nothing wrong in this as we see the prophet (s) married the daughter of Abu Sufyan.

Is lip balm that you put on your dry lips a barrier for water during ghusul? I put some on my lips around 40 minutes before doing ghusul. I didn't think much about it until after doing the ghusul.

I did wash my lips normally during ghusul (as one should) but afterwards I could feel a little bit of the lip balm (though I don't think there was a visible barrier or anything thick)

If you think that it was not a barrier than your ghusl was correct

Tell the procedure of sajda sahw and in what mistakes it is been done?

https://www.sistani.org/english/book/48/2244/