Please could someone who has been in this position offer any guidance on how on earth to approach my research and thinking ?
Thank you
It's a really good question, and often a very personal one. Generally the decision to go ahead is largely based on quality of life. Quite often we have to live with compromise, but when those compromises become overwhelming, then it's good to know there's a reliable operation to address.
If it was me, at your age, I'd want to ask the surgeon if it makes more sense to do a full as opposed to a partial (I'd want to know that the other half of the knee is pristine) and if you're leaning towards a delay, you might ask if there's any potential complication as a result of more unaddressed wear. I would doubt it, but wouldn't hurt to ask.
Good luck!