Thanks for reaching out and we're sorry to hear that you're feeling frustrated about the process of getting your bike dialed in. Without knowing the specific model of Co-op Cycles CTY bike that you have it's challenging to make a specific recommendation. Your best bet is to connect with your local REI bike tech for help with a kickstand and a bike rack.
That being said, we have some suggestions that may work for you, depending on the model:
A bike rack like the Topeak Explorer MTX Tubular Rack with Disc Mounts could be a good option that works with your bike's disc brakes. One thing to bear in mind is that in order to make the rack level, there are a pair of adjustable 'arms' that attach to the braze ons on the frame of your bike. Those arms may need to be arc-ed in order to fit your bike, particularly if you have a step thru bike with a low frame. Please take a look at the photo below for reference.
A kick stand like the Portland Design Works Power Stance Kickstand might work for your bike. It is important to remember that often times manufacturers will adjust the specifications of their kickstands (i.e. the angle of their stands or the kind of mounting hardware) and that can mean they are no longer compatible with a bike. While we do our best to make the correct adaptations in the designs of our bikes, it is sometimes hard to get a match. This is where it can be helpful to get input from your bike shop as sometimes all it takes is a different bolt to make it work.
Here is a photo one of our customers posted in their review of the bike that shows the 'arms' of the bike rack. Unfortunately, we are unable to tell which kind of kickstand this is, however, it is a 'rear mounting' style.
Hopefully this helps, thanks!