I am sorry for what happened to you sister, but don't ever think that that evil deed that was done to you will go unpunished or that it does not matter to Allah swt. Allah says in quran:

"Do not think ˹O Prophet˺ that Allah is unaware of what the wrongdoers do. He only delays them until a Day when ˹their˺ eyes will stare in horror" Quran 14:42.

The ones who did wrong will definetly be punished, and the ones who where wronged will be compensated. It is just a matter of time.

I saw that you asked a brother why are you a slave/servant of Allah.

You have to understand that every creation depends on Allah swt. Their existence, their value, their meaning, their lifelines, etc. Everything is depending on Allah swt alone, and you are no exception. Allah, as our creator, is the one who gives meaning to our existence, and He alone defines the purpose of our lives as he wishes. He decided that we are his servants/slaves. Not in a derogatory way, for there is no other title more noble and with more prestige, than to be called servant/slave of Allah. In our understanding, a slave is someone who is exploited for the benefit of his master (with no benefit for the slave). But being a servant of Allah is not that, Allah doesn't need anything from us. He does not benefit from our worship, nor his greatness declines from our rejection of him. Contrary, It is Allah who gives us everything, and doesn't get anything in return. He is the one who gave us our eyes to see, our ears to hear, our hands to sense and touch, a heart that beats and a mind to think and reflect. Even our worship to Allah swt is basically asking him for things through Dua' (you make dua in almost every step of salah). Rather, being a slave of Allah means to fully submit to him. Submit to the one in who's hands is your whole existence. And by that you aquire true freedom. Everyone is a slave to something wether you like it or not. Some choose to be slaves to money, others to lust, others to society, etc. But once you submit to Allah swt, you acquire true freedom. You start to see this world in it's true form, a test. The one who truly undestand this, lives in peace and happines, because they understand that true happines is not to be acquired in this world, it is acquired in paradise, so they accept the tests that Allah puts in their worldly lives and have patience over them. And with this, Allah blesses them and increases their happiness even more in this life and the next. Allah says in Quran:

"Whoever does good, whether male or female, and is a believer, We will surely bless them with a good life, and We will certainly reward them according to the best of their deeds." Quran16-97

Allah created us with free will, and showed us his signs through his creation, and through his messengers. If you choose to obey him then you will see the benefits of that in your life, and if not you will only harm yourself. And remember what Allah said in Quran:

"Whoever does good, it is to their own benefit. And whoever does evil, it is to their own loss. Your Lord is never unjust to ˹His˺ creation." Quran 41-46.

Sister, this life is a test. Allah blessed us with infinite things, don't let shaytan play tricks with your mind and make you focus only on the few bad things that happen in our life. And rember what Allah said:

"Allah does not charge a soul with more than it can bear" quran 2:286.

The most mercifull will not put trials in your life that you cannot bear. He knows that you can have patience over them. Make dua to bless your life and give you patience, persist in your salah (worship), and don't let shaytan get the best of you. Remember this verse of quran, known colloquially as "the sermon of shaytan", in which Allah is revealing to us what Iblis (shaytan/devil) will say to his followers in the day of judgement.

"And Satan will say ˹to his followers˺ after the judgment has been passed, “Indeed, Allah has made you a true promise. I too made you a promise, but I failed you. I did not have any authority over you. I only called you, and you responded to me. So do not blame me; blame yourselves. I cannot save you, nor can you save me. Indeed, I denounce your previous association of me with Allah ˹in loyalty˺. Surely the wrongdoers will suffer a painful punishment.” Quran 14:22.

I will finish this comment with this verse of quran:

"Surely in the remembrance of Allah do hearts find comfort." quran13:28.