No, your logic is flawed.
There are two logical possibilities, and neither can be ruled in or out: the universe has a naturalistic origin or a supernaturalistic one. If you consider that a conclusion, it is the only valid one. If a conclusion would be to pick one, then no conclusion is possible at this time. Reason leaves us agnostic on the question. If one picks one anyway as you have done, he holds unsupported belief and has committed a non sequitur - his conclusion doesn't follow from what came before. You've unjustifiably eliminated the possibility of an unconscious substance being the source of our universe (multiverse).
Your argument is a variation on the Kalam Cosmological Argument. Craig makes the same logical error in his treatment of it. His 1, 2 and 3 are your "We are here, we didn’t come from nothing." His 4 and 5 are your "1 Conclusion. A Eternal God created us" :
1. “Whatever begins to exist has a cause of its existence.”
2. “The universe began to exist.”
3. “Therefore, the universe has a cause of its existence.”
4. “If the universe has a cause of its existence, then an uncaused, personal Creator of the universe exists, who sans creation is beginningless, changeless, immaterial, timeless, spaceless, and enormously powerful and intelligent.”
5. “Therefore, an uncaused, personal Creator of the universe exists, who sans creation is “beginningless,” changeless, immaterial, timeless, spaceless, and enormously powerful and intelligent.”
His argument is also a non sequitur. Where did the multiverse go in it? And how did he decide the deity must be any of the qualities he mysteriously "derives" in his argument? It looks to me like he just stuck them in there while removing the multiverse, both unjustifiably.
Regarding your "sure they are," neither your version nor Craig's is demonstrably correct, nor falsifiable. That is what it means to say that they can neither be ruled in or out. He and you could be correct, but if so, that cannot be demonstrated to be the case. Or you might be wrong, and that is also not demonstrable (falsifiable).