WHY IS LIFE SO DIFFICULT?????

I'm dealing with so much on my plate right now. I'm not used to being under so much stress. I'm dealing with a sexual assault case, I'm dealing with college applications, im dealing with passing my stats class that I need to graduate, im dealing with my boyfriend not being supportive and cheating on me while hes away at college, my dad was recently diagnosed with osteoporosis, my moms depression is eating away at her because she couldn't help me when I was sexually assaulted and on top of it all I'm dealing with severe anxiety, my heightened ptsd, my depression and my bpd. I'm not on any medication anymore. I have no one to talk to bc my boyfriend hated all my friends so I had to distance myself from them and now when I try to reach out its awkward! I only see my therapist once a month and even when I talk to her I still dont feel alright. Our sessions seem so short and rushed! I feel like one of these days I'm just gonna say fuck it and skip town.