Hello Mandalee, can we offer you a warm welcome to the forums.
I'm sure the last 12-18 months must have not only been very traumatic and indeed upsetting for you with a parent been diagnose with Alzheimer's, but the loss of your two beloved pets, making your position impossible to continue your studies and your job and neither of these is any fault of yours, so please never blame yourself, and very sorry because you're not well and don't have the strength at the moment to continue any of these, but please remember you can continue on with these as soon as you get the help you need.
Most of us understand why you need to cry and it could well be that depression and anxiety are what you are struggling with and sometimes it just gradually creeps up on us, affecting everything we do in life.
Can I ask you, and very sorry too, but I just hope you have an understandable doctor, someone you can begin talking with, who can then direct you in the right direction.
We'd love to hear back from you whenever it's possible, all we want to do is help you because we already understand what you've told us.