What is the point if it's not a simulation then? Tell me what practical difference does it make to you if it's a simulation. How does it have any more of a point or significance if it's not? It doesn't. You live, and then you die, and it won't matter either way.
Just live, and take it for what it is. Let's say you're right, and it is somehow a simulation or "fake". Then what? Who cares? It doesn't change this experience for you whatsoever, so I don't see why you should care at all. Worse yet, you will never know the answer to those questions, so obsessing over them is a complete waste of time. You're worrying about something that makes no difference. Even if this was a simulation, it wouldn't diminish the experience for you.
And let's say that others were not conscious. Well, that wouldn't really change much either. You couldn't just go around killing people anyway because there are laws in society, and even if you somehow unlocked the knowledge that solipsism is true-don't worry; it's not-you'd still have to keep living normally unless you wanted to be locked up in prison. Yes, so who cares? There are actual constructive things to ponder and research instead of wasting time on this intellectual dead end. Solipsism is garbage.