Question. about the beginning?

There was a singularity, matter compressed to the point that there was no space. Atoms are more than 99.9% empty space. Consider it similar to the solar system. The actual m of the system is minute compared to the space it takes up, but gravity holds it all together. If it were all compressed together, the more m in one spot increases the gravity. Eventually gravity, including the atomic strong and weak forces, are overcome and everything compresses. It would eventually get to the point where heat generated by the closeness of everything overcomes gravity and it explodes, rather dramatically. Eventually the universe forms. The god/creation thing comes from - where did the original singularity come from - the 2 theories are goddidit and a bunch of others. My persoanl favorite is that it came from the big collapse of the previous universe. Our universe will eventually stop expanding and begin collapsing. Eventually forming a singularity that will explode from heat and stresses. The second big question is where did the previous universe come from. If god can be infinite, why can't a universe be infinite, continuously big banging, creating, collapsing and then big banging ad infinitum.