I thought about an English or French speaking country, like UK (but Brexit time, I really don't know) or France.

As for Latvia, my doubts are not only about my dad, but also about language policy, that in this way I can run out of money without his support. Reason? Latvians require a normal knowledge of the state language, otherwise it is impossible to be normally employed.
I also sometimes think that my dad wants me to be literally by his side as a caregiver.

I own a good flat in a good district. But I should make many adjustments and everything to be done not in a hurry and very carefully.