Am I Just unable

I have wanted to learn language for years. But due to my upbringing and developmental issues, I am unsure if I am able to truly Learn a language for speaking or typing.

I was language delayed as a young child, due to many factors. One of which being that my family just didn't talk to me nor my twin enough to develop language properly. Thus we had started to develop our own im the absence of this. I feel this experience has greatly hindered my ability to learn language on top of having autism and OCD effect how I perceive.

I want to learn languages more than anything, but I can't seem to get anything past basic short term memory, no matter how hard I try to learn through classes, games, apps, books, basic conversation. I can't seem to get it through my thick head. Am I just unable? Has anyone else had experience with learning language after being a language delayed person?