As the title says me and my long term partner are really struggling. Stems from very historic betrayal when we were both in early adulthood/late teens and more recent conflict. I thought we'd moved past the betrayal but recently it's come to the forefront again and I am feeling regrets about my decision to continue with the relationship at the time. However it is not that simple to ltb as we have built a life together over the last twenty years and have a family and commitments. We love each other and both have a willingness to make changes but we don't know how to start.
We think we need couples therapy but due to the cost of where we live we don't have money in the budget to be able to do that, plus with children we could only fit in online therapy and I have an aversion it video calls. However our dynamic is not currently working and we need to do something, it is not healthy for our children to hear our conflict and we would both like to feel happier. Would anyone have any suggestions, like books to read or worksheets to do that could help us work through our issues and strengthen our relationship? Any help much appreciated, I feel so low about it most of the time and I know my partner isn't happy either.