the way of solving problem is not the right way

[flytothesky]

Hello~ Can you help me say this naturally please?ⓐⓑⓒⓓ


A: Hey, lighten up! All the problems have solved out anyways.

B: Even though it has solved out but there were so many problems in the middle of process.
Even though they know the way of solving problem is not the right way they did it for their benefits.

A: Human being is born with selfish. I’m sure you either.

[Charlie Bernstein]

Hello~ Can you help me say this naturally please?ⓐⓑⓒⓓ


A: Hey, lighten up! All the problems have solved themselves, anyway.

B: Even so, there were a lot of problems with the process.
Even though they knew their way was wrong, they did it for their own benefit.

A: Human beings are born selfish. I’m sure you either. [I don't understand the last sentence.]

[I edit copy and have tutored college writing.]