You do need to speak to your priest about these things. Canon law may well have answers that we have no idea about. Also pray to God, he is the one who goes before you and sorts all things out for you, he did this and is doing this and will do this in amazing and wonderous ways that none of us could ever think of… so talk to him and trust in him and let his will be done. He can and is and will be doing this for your wife and children too.
Also relax and take a breath, you dont have to rush into anything, certainly not divorcing your wife because she wont do what you want. God’s way is love. Go about bringing God’s kingdom of love to your family first, so as you work towards your conversion let God’s love lead you. God’s will is always about patience, believe me, following the will of God is primarily about humility and patience. You give yourself up to God, so that his will is first, always and that means, leaving what you want at the door for ever and that takes patience and putting yourself last. It’s a long and difficult journey but it is immensely rewarding. Don’t look too far in the distance, let God lead. Just take one step, what does God want from you now? this first step…Is it converting? if so then concentrate on that. forget the logistics and the future, let God take care of all that and just take that one step. Trust in him. Be patient and loving with your wife (you can ask God a million times a day if you like for patience and love and help and kindness etc. so you can be that way to your wife… you dont have to do it on your own… ask Jesus to take over and abandon yourself to him… he wants to help you!) . Forget about all the details for now… God will sort them out for you and tell you what he wants you to do at each point in time… one step at a time. God bless you. Welcome home to our Catholic faith