I would say persevere with the metronome for a while. Your timing is only as good as your internal counting, and playing against a mechanised click gives you a chance to see how accurate your internal counting is.
I got a metronome when I started piano last December, but found that I didn't use it. I played guitar for nearly 30 years before switching instrument, and my timing is very steady - I know instantly if I've lagged or rushed a note. Recently, however, I've been using the metronome to get a better feel for tempo - how fast is 104 beats per minute, kinda thing. As a guitarist, I either relied on the drummer to set the tempo, or set it to whatever felt right at the time (own material).
I don't use the metronome all the time, just now and then to see if I'm steady and playing at the right sort of tempo.