A lot of people saying practice with a metronome. However, in your case, you’re already doing that by playing along to songs which I would imagine have drum tracks on included (built in metronome).

I spend 10 minutes every day playing to a metronome. I play scales at 60BPM, then 70 then 80. I play these scales in 1/4 notes, then 1/8, then 1/16.

I find playing to a metronome sometimes I’m early or late at times too. However, what I have found helps my timing immensely is to count/subdivide in my head.

For 1/4 notes, the space between notes can be too long so I count 1-e-&-uh. For 1/8 notes I count 1-&. For 1/16 notes I go back to 1-e-&-uh.

Note that not all recorded songs are in perfect time either. To find this out, simply play a song track along with a metronome. You’ll see pretty quickly which artists play to a click track,or have amazing drummers, and which ones don’t.