I dont really know if am in the right forum nut lets try

I would like to travel to germany coming holidays but I am a bit confused.
I am divorced and received the Retained right of residence for 5 years.
Because I am travelling on my own without my ex husband (luckilY) what problem am I going to face in heathrow immigration ?
My solicitor gave me a letter which stayed that am depending on myself not on my ex husband anymore .
Can anyone help me please?
That would be nice
I am in need of holiday for myself