Another vote to check on deferred retirement options. There's probably a good chance you could quit at 55 but NOT start withdrawing your pension/annuity until age 62+, and the amount may be much closer to that $2300 - 2900 per month. It's probably a false, apples-to-oranges comparison to compare the amount you'd get by quitting and withdrawing at 55 vs. quitting at 62+. The better comparison would be the amount you'd get by quitting at 55 and deferring the pension until 62 vs. working until 62. Then you can decide if the difference is worth it.
If the difference is not that great, or not great enough to continue working that long, you just have to find a way to bridge the gap with other investments between age 55 and the time you start your pension at 62+.