After leveling up, go to "Profile" and choose "Skills". Distribute all the skill points. However, do not choose "Confirm". Instead select "Stats". When you go back to "Skills" you will have the same amount of points to spend again. Do this until the total of your skill points is at least 100. Then, go to Mnemonic sets and use "Gods (Italian Wars - Chapter 4)". Because you have more skill points, it is faster and easier to spend them. When you want to save it, go to the stats, spend only one skill point to anything, then click on "Confirm Changes".