If your sister is in Heaven she needs nothing, and self murder is not how you get there anyway.
I don't think suicide gets you into heaven.
Only problem with that is , cowards dont Go to heaven , they go to H3ll
She is with you all the time. Talk to her. She is fine in heaven; you need her more than she needs you. She can help you if you ask. Ask, ask, ask. Suicide won't bring you to her.
It's okay, girl. You can tell me all about it (aka message me) if you'd like.