hi

Hi, I have a problem, I did a mission and I didn't get any skill points for it.

Which mission was it? You should be able to check your quest log, to see the status of the quest.

Check the NPC of the quest. If it is incomplete, check the NPC of the quest's text log, to see if they have a skill book to retrieve.

Not all quests reward skill points.

You can see which you have completed using the /passives command as well.