Hello @52andblue. I'm so sorry for what you are going through. Broken relationships are so very difficult. I think Libre, Oma and Jangly have all given you very wise words, and I agree with them that God is just and we will see justice - true and proper justice, with God knowing the heart of everyone. It's interesting you ask why people who commit evil are allowed to live long and healthy lives - if you look at many of the Psalms, the writers then were asking exactly the same question. It's one thing I love about the Bible - the sheer honesty of it and the way it allows us to shout out our feelings of injustice and pain. It's ok to do that - to ask God why. And often we don't get the answers, but what we can know with perfect assurance is that God loves each and every one of us with a love that goes beyond our imaginations. I love a passage from the book of Ephesians:
'I pray that you, being rooted and established in love, may have power, together with all the Lord’s holy people, to grasp how wide and long and high and deep is the love of Christ, and to know this love that surpasses knowledge – that you may be filled to the measure of all the fullness of God.'
Ephesians 3:17-19 NIVUK
bible.com/bible/113/eph.3.17-19.NIVUK
This shows us that God is love and God can't help but love us with love that goes beyond all the borders. God loves you with great, great passion, has loved you from before you were born. You are fearfully and wonderfully made (Psalm 139).
Often forgiving people doesn't mean you will suddenly feel forgiveness. It's more an act of the will, a decision to cut yourself off from damaging ties these people have bound you with. It's up to them to make their own acts of repentance, or not. All you can do is come to a place where you decide you are not going to allow their toxicity to be part of your framework anymore, and so you choose to forgive. Forgiveness doesn't mean excusing the other or saying what they did was fine - it means that you are not allowing their actions to define you. It's very liberating and it's difficult, and God understands that. They will have to answer to him for their sins against you.
I hope some of this makes sense. Please do come here and ask questions and ask for prayer. We are here to help and to pray.