u/Civil-Extension-5281

Not too long ago i bought a used sony discman (D-SJ15) and up until a few days ago it worked perfectly (i think), but lately it has been pausing on its own, the thing that shows the track and time has been acting a bit weird, sometimes the buttons dont work when pressed, sometimes when i press forward or backward (keep in mind i said press, not hold) it just rewind/forwards a tiny bit i think, it doesnt go to the next/previous track. Also, for some reason when i close the lid (even without a cd inside) the track number appears and it beeps. Can someone please help me i really dont want my dad to think that this was a waste of money :c