Hey Gary - Thank you for posting your anniversary update. You’ve done very well and I am pleased for you as I expect all reading this will be too. Posts like yours offer inspiration and moral boosts to many who read them.
If I may ask, are you on schedule for this, or perhaps have ye already achieved this?
I hope you’re already doing this, but if not, I have no doubt this will be easily achieved in the next 12 months 
With regards to your PIP claim, Ann @Mrs5K is right. PIP is usually paid to people who have not reached state pension age, all new claims will be based on this, though if your PIP was granted before you reached state pension age then you may [in certain circumstances] continue to receive it until age 70.
However, in your case as you were already at state pension age when you applied for PIP, you would not have been eligible (on grounds of age), but they should have explained this and they should have advised (as Ann did) to apply for Attendance Allowance in stead. Attendance Allowance is the PIP equivalent of the PIP and is for people already at state pension age.
Certain criteria do have to be met before it is granted, but if you were advised to apply for PIP then certainly you should apply for Attendance Allowance.
