Paula, you must know that nothing gets better by ignoring it, no matter what it is. However difficult, you must talk to your parents. If not them then another responsible adult in your life. Try not to be overly emotional when you do it. Be as calm and straightforward as you can be. (I know, easier said than done)

Not to excuse them in any way, but I'm certain they are stressed to the max. People do things that aren't normal when they're completely stressed out. Like you said, there's a lot going on and your suicide attempt must have freaked them out in ways I can't even imagine.

If you and your parents ignore it, it will only fester and get worse.

{{{{{Hugs}}}}}