Hi Kadhiem,
That is a very sad situation and you have my deepest sympathy for your experiences. You are really learning the hard way!
But my overall assessment is that foreign exchange trading is not for you at all. It is very demanding at ALL levels, there is no easy or safe way to trade it.
Regarding brokers, they recognise the requirements of the regulatory authorities (and not always even that much!) as the limit of their moral duty to their clients. Your suitability is left pretty much for you to decide. They will only advise you that trading forex involves risks and that you should only risk what you can afford.
In some ways, it is correct that traders take responsibility for their own actions, but I agree that there could be more specific warnings about the possible extent of risk - but ultimately it is like smoking, how far should governments and companies go in deterring people from doing so without infringing their freedom to make their own decisions.
I would guess from your interest in trading GBP that you are based in the UK. This is a demanding currency to trade even under normal conditions, but for a novice to trade it during Brexit year and beyond is truly high risk even for professional traders and veterans in the retail trading sector - personally, I think you should not risk your retirement capital in such verntures. Sorry, but that is my view!