Just curious, as someone new to glasses - is this normal?

It depends on the amount of "farsightedness" (hyperopia) and "nearsightedness" (myopia). A small amount in each eye would not be that abnormal. But to be drastically different in each eye is not that common. It happens but it is not the most common way to find the two eyes. Although the two eyes are separate, just like, say your hands, they tend to be very similar.

i think its possible i for example hav one eye with estigmatism n the other doesnt do one is kinda cross eyed and has a worse sight than the other..

My dear, it's simple. It is a natural phenomena that humans have on eye for sighting things at greater distance and one eye for sighting things closely. The same idea is adopted while making lenses of glasses for human eyes. I hope it will be quiet clear for your understanding and curiosity