I had a seizure and i find it harder to understand things after my seizure?

For how long after the seizure?. There is a known post-ictal state. https://www.ncbi.nlm.nih.gov/books/NBK526004/ But a seizure is a complex medical issues Please discuss with your neurologist

A period of post-ictal confusion is typical following generalized seizures, but typically, return to baseline occurs over a few hrs. Whether you have had one or several seizures, a neurological consult is mandatory. Currently, avoid driving, activities at heights, use of power equipment, bathing and swimming alone.