I've been learning the language for about 2.5 months now and I've quite improved in my reading, speaking, writing, and but not in my listening

That's normal. Not all the skills will improve at the same pace. Listening is more difficult than speaking because you have no control over what the other person says. Also, spoken French can be quite fast and clipped. The best remedy is to just keep immersing yourself to French. Watch a French movie and turn French subtitles on. That can be a bit tiresome but it'll help you connect what you hear to what you see.

Am at the same situation! Cant get a word of what they say!!