Can someone explain rebirth and reincarnation?

I think rebirth is spiritual .. I personally don't believe in reincarnation

Reincarnation
The idea that the spirit of a person leaves the body at death and is reborn into another. It is claimed, in some versions, that the spirit must wait a certain period before entering the next body.

In some Indian religions, the spirit passes either to a higher or lower form of life, depending on the righteousness of the life just left. This obviously encourages righteousness.

The idea is a very important part of the Theosophical religion, which teaches that there are a series of reincarnations necessary for the spirit to attain The Path of Perfection.

I believe in jesus...

You're overlooking another possibility in how infinite space-time (equates to chance) doles possibility/distributes information. There are two scenarios worth considering.

Yes somebody can

Hitler also has to live as Anne Frank, the end.

Why want an explanation based on zero evidence. Speculation is pointless.