first off kudos to you guys for speaking openly about these things, its such a shame mental health treatment still has so far to go
personally my parents split when i was 5, stepdad physically and emotionally abused me until i left home, and my mum just screwed about with my head too, experienced a lot of loss and violence when i was a teen, seen things a kid should never see and lost my grandparents while i was living with them, as a result i have been diagnosed with anxiety, ptsd and pdpd and currently in psychotherapy for 2 years
its ok to say others have it worse, and it prbably is true but the problem with depression and the like, its all subjective to the person, i agree you need to speak to a counsellor and not someone you know, this will help a great deal, another idea is to write things down in a journal, or letter, if you dont want the risk of people reading them then rip the page up
it helps to see things in black and white, and helps to process the feelings
i really hope you can find some help amongst the advice here, and really hope you can find a counsellor to help you mate
all the best