Too far for what?
If you mean 'Report for RSV assignment'; then no, not really, but JFK could be tighter.
Parking is at Lefferts Blvd, add ~20 minutes minimum to get to T4. There's something of a shortcut via T2 and the Jitney, or a decent walk through Terminal 4. We're at B4x to B55. It's quite the stroll.
LGA parking is awful. P10 is the other side of the Marine Air Terminal (aka 'MAT') and can add 30 minutes to your journey. From the West Side of Manhattan its taken me longer on the parking bus than driving to the airport...
You should be fine. Once you hold a line it becomes much easier of course, but you live close enough to pick up trips, and thats were the money is.
The culture here is such that; even of you are running late; an apologetic call to Crew Scheduling is likely enough for you never to hear anything about it again. -As long as its not habitual, obviously...
Best
/PL