The only issue that keeps me away from believing

Hello brothers, Before reading, you guys must understand that I am agnostic. I want you guys to be objective, and if anything that you read below makes you feel bad, it is not my intention. I just want answers for the only reason because I do not believe. Thank you so much. I am a young and humble seeker of the truth from Spain. I grew up in Christian values, but I never really believed. Now, a few year into College, I started to interest in religion and theology due to all the problems I see in the world and personal problems.Objectively, I see Islam a better religion than Christianity because of some social crucial aspects, like the possibility of divorce. But I also dislike some aspects of Islam, regarding to the social field. (To clarify, my approach here is about the actual and factual religion, what is written in the books. We all know that christians disobey much more their book than muslims, and I hugely respect muslims because of being more orthodox).And, yes, I underlined the word "social" purposely. Because there is a major question that makes me not believe in Allah.For my question I will focus only in Allah and the creation, not anything else, like moral laws. Only Allah and creation.My question and debate is the following:Why did Allah (God) create us? Allah is what created all, the author of creation. He does not need us, he needs nothing, because he can do it all.My issue is that he created us, from nothing, without asking anybody to be born, and tells us through a messenger man what he wants us to do. If we obey, we are saved for eternity. If we do not obey, we are sent to hell for eternity. If you do not like the conditions, and want to quit, you cannot take the way out, because you will be sent for eternity to hellfire. Couldn't he just have not created us? Now, isn't this extremely egotistic and dark?The Quran in fact mentions to fear Allah a few times (example. Surah Al-Ma'idah, 93). The Quran also says that we are Allah's servants, but that he is the most forgiving and merciful (Surah Az-Zumar, 53).I would only understand the faith in Allah in a sense of fear, fear because of his power and selfishness. I would only understand to follow him as a servant, who does not loves his owner, but he has no choice but to do what he is being obliged to do. Yes, if you obey him but make mistakes, in the path of obeying him, you could be forgiven.Guys, I don't know you, but to me this is profoundly dismal.Please, respond to me in a sincery way, and trying to give good answers. Because I saw already answers like "How do you dare to even consider the un-existence/ purpose of Allah" or "Allah is the only one to know", and this kind of answers are all but clarifying.Thank you,sincerely.