As you level up, you will see that the amount of skill points you can put into a skill goes up too. But this only happens at certain milestones. These are the levels that you gain more skill points at:
Level | Points |
1 | 5 |
15 | 10 |
30 | 15 |
50 | 17 |
60 | 20 |
90 | 25 |
120 | 30 |
150 | 35 |
180 | 40 |
210 | 45 |
240 | 50 |