Put back your old SSD and see if it works again and go from there. Best to take things slowly and carefully.
If you want to make your life easier buy a SSD enclosure of sorts that can connect through USB or thunderbolt if you end up taking the SSD out. That way you can clone it, put whatever on there before installing it into a computer and whatnot. They are very inexpensive in general and you will probably be using it more than once. I got a relatively cheap SSK SSD enclosure and for cloning purposes it worked as intended (granted I did it through USB and I take cloning very slowly as I don't do it often).
If you do want to clone your SSD specifically with windows I have heard DiskGenius is the best cloning software for windows (UNLESS you have a Samsung SSD in which they have propietary software specifically for cloning. I have used samsungs software for cloning a RAID 0 array once and zero problems so far!) Also if you don't know how to clone there are several youtube videos on it for each cloning software.
tldr; put back old SSD and test it (hope it works again), get a SSD enclosure that at least has a USB connection, find a suitable cloning software with a good reputation, and please list what you are intending to do (I assume you want to clone your drive).