These two words are often confused by native and non-native English speakers alike. The key thing to remember is that “accept” is a verb and a synonym of “to receive” as in the example “I accepted all my birthday gifts with gratitude”. “Except” on the other hand is a conjunction and a synonym of “apart from”. For example “When Susan travels she packs everything except the kitchen sink”.
Remember, “accept” is a verb meaning “to receive” and “except” is a conjunction meaning “apart from”.