A personalized retirement plan can certainly answer all your questions, at least as far as the financial side is concerned. After all, retiring early has consequences. For example, your OASI and LOB pensions are reduced if you begin drawing them early. You have to take that into account when planning your budget.
By the same token, you can retire early but postpone drawing your OASI pension and your pension fund benefits, choosing instead to apply for these once you reach ordinary retirement age. If you decide to do that, however, you will need to have sufficient funds to bridge the resulting gap.
It is also important to note that, even if you retire early, you will need to keep paying OASI contributions until you reach ordinary retirement age. Only then does the obligation to pay contributions cease.