Im current lv 45 but dont know which should put skill point for later. Does this good or not 
I’m play coop with friends
Your build looks similar to my plan for my Gaige:
http://bl2skills.com/mechromancer.html#550050151051050050000000415150151051
I intend to eventually run a Leg. Anarchist com with that setup (hence the points into So5G)
If I was using that build and was wondering where to put the next point (assuming I’m not otherwise changing the build, which I think will be fine at level 45), I would put it into Unstoppable Force.
Being honest, are you playing a melee setup? If not, there is no need at all to get With Claws.
The same way I feel like Nth Degree is wasted without multi-pellet guns such as the Fibber or Pimpernel.
Without those, you are saving 6 points that can get you closer to 20% Cooler and Sharing is Caring.
Also, I feel like the 4 points from Potent as a Pony and Fancy Mathematics are better used in Unstoppable Force. Or The Better Half, as it is going to up your dps a lot.
Thank i will test 