Legal advice for divorced parents

Questioner

My ex and I have been separated for a little over a year now. However, he keeps trying to tinker with the existing agreements regarding our child in his own interests. But when I then indicate that I also want to change something else in the interest of our child, that is suddenly not possible and he acts as if he sees him very little and that I only think in my interest. He always comes across as very intimidating and continually messes with the agreements or does not adhere to them. Discussions with a mediator have only briefly changed this. Whenever communication is starting to improve, he comes up with something to intimidate me and sometimes he even comes across as verbally aggressive towards me. I have tried to confront him about this, but this also has only a short-term effect, he never responds to this and then suddenly becomes temporarily sweet as pie. I expect that this will come before a judge soon and I would therefore like to be well prepared and start building a file. If it is not necessary then that is only nice. My question is whether you have any advice on how I can best build up this file.

Lawyer

Record as much as possible, in whatever way. Start with a notebook in which you describe all incidents with date and in detail. Email him about it and indicate what happened and what was wrong with it. Present it neutrally so that it does not escalate further but you still have good reporting. Take photos or videos. Everything you can think of can serve as evidence. Then you are well prepared for a possible procedure (which you can also start yourself if this would harm your child).