Time for you to seek out in-person help.Good sources for that would be a school counselor or trusted teacher, an extended family member, or, as programs like this are common, by asking your local authorities or hospital for a list of local support groups for those who have recently lost family members.
Which ever feels most comfortable for you, reach out that way. With so many things you're dealing with right now, some of which are incredibly hard, and how helpless you're feeling, you truly need to take the steps to create a support network for yourself.
As some users and volunteers here know, I'm not going to give giant lip service to suicide here. I very fully understand what it is like to feel suicidal, but I have also now had three different suicides in my life, one of which was beyond tragic and heartbreaking for me, so you won't ever find me convinced that suicide like this is EVER excusable or ever " a way out." We have no way of knowing is someone who suicided ever found any peace at all, and we ceratinly do know it causes a gargantuan world of pain for those who have loved ones who suicide, sometimes far more that what you're feeling now, if that puts things in any perspective for you.
So, per the topic of suicide, there are hotlines available in our Crisis section if you feel you need them. But at these boards, while we're glad to help you get help to get through this and feel better however we can, if you want to dicuss the possibility of your suicide in depth, you're going to either need to take it to a hot line, where there are more impartial people, or post about it at a board where folks are a whole lot less directly experienced with it.