As for earning karma again, he knows for sure that is going to be difficult since he is not among mortals anymore. It is going to be difficult because cultivators are difficult to please.
When he was still living at home with his mother, he avoided the bastards of his family and focused instead on helping the servants to avoid this kind of difficulty.
When he reached Agate City, he also avoided the normal people and instead helped the poor living in the slums. It was because it was easier to be appreciated by poor people than by well-to-do people.
He can expect that it will be very difficult to make cultivators appreciate what he is doing. He has some ideas on how to go about it, but he is not sure it will work at all.
As these thoughts went through his mind, he sighed and quickened his pace. He wanted to return home as soon as possible.
