Does Life Really Make Any Sense?

I am just so confused and I am about to pull my hair out. To all you that are about to tell me to just be happy and live life, I can't do that because I am a deep thinker and I wont be able to move on until Iovercome this. I might be able to distract myself, but I need to overcome this. I don't really understand life, none of it really makes sense. On the face of it, everyday life make complete sense and there is nothing to question, but once you look deeper it opens a whole new world of questions. I am an atheist and it makes sense to me that there is no afterlfe, it is scientifically proven. However, sometimes there are things that make me question my beliefs. Why do we exist? Why are we so complex compared to othe organisms? Why do we think? Me thinking about my own life right now doesn't make sense. Why do we have a conscience? If we are just made of billions of cells, then why do we have one single unified mind that can make decisions on behalf of the billions, no trillions of cells in our body. How is my unified body able to recognize that I am no more than just trillions of cells? Why do we have dreams? Why do we think the dreams are real? Why do we have a sub consciousness? Why are there morals? Why do most of us try to help others, why don't we just respond to our evolutionary instincts and just worry only about ourselves. Is there an afterlife? If so, than is there judgement for the wicked? Do we have souls? If we have souls, then do bacteria have them too? Why is there even a universe? But if there wasn't a universe, that wouldn't make sense either. Please try to answer me. Tell me if you think we have an aftelife and a purpose in life, or if we are just the product of the universe's greatest accident.