If the resume says proficient, it's not a big problem. HR generally doesn't take this resume seriously. Know that many people exaggerate. In this case, the abilities found in general work do not conform to the resume description. Big companies hire you and don't care about this at all. Naturally, there are ways to help you improve. Small companies don't care about this at all. So don't be too flustered, use the rest time to improve yourself and try to be the same as your resume.