What barriers or frustrations do you face?

This is purely for my own personal curiosity.

I was wondering what other language learners are coming across in terms of barriers or frustrationswhen learning their target language.

I am currently learning to speak Welsh and the barriers/frustrations that I am facing are:

- Little to no online content (via YouTube for example) of consistent content for different levels of learners.

- Fluent speakers use so many contractions that it is almost like an entirely different language.

- No single course/tool that teaches the same thing (e.g. a course will teach you how to say something one way, another will teach you a different way and another a whole other way).

- Sometimes, you may want to know why a certain grammer rule applies but nobody can answer.

I am a native English speaker and this is the only other language I have tried to learn, so my expectations may be a little off.

Can others share what language they are trying to learn and some of the barriers/frustrations you are encountering?

Thanks.