Feeling Sad Despite Everything Going Well

hi everyone i hope your days going well! lately i’ve felt like my head is gonna explode, everything in my life is going objectively well. i have a boyfriend who loves and supports me, i just got my license and i’m getting a car this week, i also just got a job i’ve been wanting for a while. but i’m still so sad, every day, all the time. i don’t wanna work, i know my body can’t handle it. i know my mind can’t either right now. i was sa’d by my childhood best friend just about two years ago. and that’s all that consumes my mind, it makes me question my relationship, my friends and my worth. i look around at my bedroom and how messy it is and i just feel so much anxiety. i don’t know how to handle all these new things. just ranting idk