Level 12.5 is nothing, i've been close to level 40 a few times & rerolled half a dozen times

It's upto you really, that level is nothing to worry about if your want to restart & reroll. Unless your going to incorperate destruction into your charatcer as well, they might be 6 wasted Perks.
Also, dont invest Perks into skills untill you have tried out a few styles & settled on ones you prefer. Perks stack up untill you want to use them, no big to spend them right away.