SSD and Partitions

Hey y'all

I have gotten a new SSD for me this week. Since I am replacing the one I have on Mac for the new one, I decided to create a partition on it with the purpose of installing Windows. But some problems happened and I am not finding a solution that works:

- I had to initialize de new disk in order to install High Sierra. When trying to install de OS, I created 2 partitions: Mac and Win. The installation failed and now I can't restore or resize into a single drive. The partition is neither showing up on disk utility nor on terminal command line 'diskutil list'.

So, I don't know how to fix this in order to resize into a single one and then installing the High Sierra (without creating a partition).