Hi and welcome.

A month and a half probably seems like a long time to deal with your symptoms, but TBIs take time to heal, and in that context your injury was relatively recent.

Your seeing the neurologist/neuropsychologist next week is the important next step. I'd suggest just continuing to rest until then. With your aphasia my guess is they will refer you to a speech pathologist and possibly an occupational therapist as well. My therapists were very helpful in restoring executive functions (the inability to multi-task that you describe) as well as other cognitive deficits.

The brain is an incredibly complex organ, and when injured they heal at their own pace. You will hear the phrase "if you have seen one brain injury, you have seen ONE brain injury". Wishing you well on your recovery journey, let us know how the neuro exam goes.

Best to you