Worried there might be an afterlife

[Angrboda]

I certainly believe in karma or the law of action and reaction.
Just look at the statistics.
The cops are only able to get less than 10% of criminals so how 
would be possible for these people to pay for their crimes other than
reborn again and again and go through different forms of punishment
until all the debts are paid for.

Nothing says that there is ultimate justice, except for your wishful thinking that there is.

Physically speaking every action has got to have an equal and opposite 
reaction.

Physically speaking, not psychically speaking. Your evidence is that an immaterial chain of effects is based on a law about material causes? Don't be stupid. The material isn't the law for the immaterial.

As far as we are stuck inside this universe i don't see how we can evade this law.

Your inability to imagine an alternative isn't any kind of evidence for your supposition.

As i previously said according to me there is no way you will be able to sort out your problems until 
you realize that we screw it up and we got to fix it up.
The power within is a real mighty power able to fix everything up.
Believe in it and you will get out your present situation.   

Kumbaya. Some things never get fixed. That's just the way things are. That you can't handle that is no evidence for an ever, ever land. Things only get fixed if they get fixed in this lifetime.

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So many guessing.
A mountain of guessing with no evidence of whatsoever.
How would you know that life end up with the physical death?  

We have evidence from brain surgeries and brain traumas that the bulk of our conscious experiences can be altered by altering the physical brain. What's more, similar traumas result in similar changes. The changes observed cover a spectrum of mental behaviors which strongly implies that all mental behaviors likely have a physical source in the brain. This is not mere guesswork. This is the accumulation of multiple lines of evidence about the role of the brain in the creation of mental phenomena. It is not completely conclusive, but it isn't solely the work of 'guesses'. It is the conclusion of many independent studies of neurological disorders and human psychophysiology. Methinks thou dost protest too much.