You should give yourself plenty of time to plan for your retirement and try not to leave it to the last minute to start thinking about this.
You should consider how much you think you will need in retirement and that will help you to plan how much you need to save to provide that sort of income in retirement. You should consider what, if any, other sources of income you have that will help towards funding your retirement.
You should also consider when you intend to stop working, or whether you intend to reduce your hours gradually. You can then plan how your pension can support you with this.
You might wish to speak with a financial adviser for further advice in relation to planning for your retirement.