Welcome to Catholic Answers Forums. It is great that you are examining your life, thinking about how to make it better, and wanting to rebuild your faith. You are on a spiritual journey, and even now you are making progress. Give thanks and praise to God!
A bit of general advice: Keep moving! Your journey will take you through some rough spots and maybe some stormy weather, but don’t despair. You will also find signposts, bridges, traveling companions, and much beauty along the Way.
Another bit of general advice: Pray. It doesn’t have to be standard prayers like the Lord’s Prayer – although that is a pretty good prayer. Just talk to God. Pray for faith. Pray for your children. Pray for strength to do the right things. Pray for wisdom to know what those right things are. Pray for hope when things seem impossible. Pray for peace in your heart. Pray for whatever else you need. Pray for those who do you wrong. Pray in gratitude for the good things in your life. Pray anytime.
I am praying for you. May the Holy Spirit assist and guide you always toward greater faith, hope, and love.