Hi! Welcome!
I am so glad you reached out! You are not alone.
It is very good that you were able to move in with family and get that support.
You are also going back to school which is a good thing. What are you studying?
I know how you might feel. I was left at 27 to raise two children on my own. My daughter had emotional problems that created crisis for years that I was left to deal with myself. Although it was me who did the filing of the divorce, my former husband had had many, many affairs and our marriage had been full of unkindness, mental and some physical , abuse.
It hurts. It just does. I am sorry that happened to you.I am sorry that happened to your son. I also know that your former husband will someday have to answer for his choices. God will deal with him in due time. I would not want to be in his shoes.
But, I also know that Jesus loves you, your son, and will fight for you on your behalf. He is the Defender of the ones mistreated. He is the One who will be Your Champion, a fierce warrior on your behalf, and be Your Healer, and everything else you need.
I started going to a Christian Recovery group called, " Celebrate Recovery " that has helped me so much to over come the wounds I carried for so long. I know that having others surrounding you who can love you as is , is very important. The sense of rejection one can feel after something like this is deep, and I know it is difficult to find trustworthy people to confide in who will not dismiss your pain, but support what God is doing in you is hard to find. I am praying God will direct you where you need to be right now.
It is also difficult in this world we live in to gain a sense of identity as a woman apart from our sexual attractiveness, and the men who desire us. Jesus is such a beautiful Husband. He is a great leader. This can be an exciting time for you to explore with God who He made you to be , to get a sense of your worth according to the Creator who formed you and does, no matter how it feels , has great plans for your life. He is a husband who is supportive and is delighted to see you blossom! He is never jealous, and enjoys watching you gain confidence in the woman He created you to be. He enjoys watching you discover gifts HE placed inside you and use them.
He takes our mistakes, the things others do, and all the wounded places inside our souls, to fill them up with more of Himself. He fills the holes with jewels that sparkle. He even transforms our tears. The scriptures say that God bottles our tears, and takes account of them. ( Psalm 56:

He weeps with us and understands every pain deep inside our beings. In our weak moment when we feel we can no longer go on, He fills us with His strength, and empowers us to have faith when we see no possible future.
He takes everything that satan means to harm us, and blesses us for it. The Lord is always faithful. So many promises in the Bible become real, and when you need them, they are there- words in black and white to remind you of the Truth when everything seems lost, and you are afraid. The words in your Bible are your very own love letters to you personally. I pray for you that as you read your bible, that God draws you specifically to certain verses. Underline them, write them out. Treasure them. You will see Him act them out on your behalf in your life in due time.
He will make your steps clear,guide you one step at a time, to the life He wants for you. He has great plans for you and your son. He will gather you close and surround you with His embrace, To be both your amour and your comforter.
The daily stuff is difficult and lonely raising children without a partner. The reality is that it is just purely painful. The ways that a husband can comfort his wife aren't there and it is very frustrating, to say the least. It is tempting to want to go and get those needs met as they can be in this world in easier and faster ways than trusting God 's timing and methods, but He will help you, and me, do that, so we will be blessed with the joy of walking with Him as He gives us, replaces and puts our lives back together again, as He knows is very best.
" Trust in Him at all times, ye people, pour out your heart before Him. God is a refuge for us." ( Psalm 62:

I pray that you look out for the little nudges that God prompts in you as you seek His next step for you right now. It may be a small group , or perhaps a woman nearby in your church who has already been down a similar pathway. God will take your attention to people , books, ministries that will bless you.
In God's eyes you are not replaceable! There is only one you and He has love for you that is like no other. His relationship with you is unique to Him. The way you and God dance is like no other, and the particular joy He finds in talking and communing with you He gets from no one else.
The scriptures say that God guides us , we who love Him, with His eye. That speaks of an intimacy and closeness, and that He wants you to be so close to Him, looking at His face, that you can sense what He wants you to do next. You know how when you are close to someone, and you are somewhere you can not speak out loud- you look at their face, and you speak without words. Their eyes speak- " look over there" or " Be patient" or " Yes, I just saw that- and I will take care of it!" and ," Stop that !" What ever it is, we have a bond and link that nothing can destroy, not even very tough things like you are facing.
Hope to hear more from you! Thanks for letting me share and pray for you today!
Love,
Rami