Pay Someone else to do it.
Most of us like tinkering with our bikes, However, some jobs are easier than others. But being able to ride a bike you’ve maintained yourself is a gratifying feeling. It not only can save you money, but the skills and knowledge of what works (and more crucially why) will help guide your equipment choices. Honing everything down to what works for you.
But some jobs, some jobs I would recommend not attempting yourself.
Its not that a competent home mechanic cannot successfully do these jobs (because they absolutely can). But that some jobs have a fairly high cost of entry. Not only in the expense of the tools required, but also the knowedge and experience needing to do them.
Wheel truing and building, rear shock servicing and in this instance, frame pivot bearings. These are all the kinds of jobs that I would suggest taking to your LBS instead of tackling yourself. Again this isn’t saying that a home mechanic cannot learn these skills. But the cost of the tools and almost more importantly, the time it would take you to do the job. Can add up and tip the scales in favour of going to the bike shop.
I don’t own a truing stand, so to dish my wheel correctly would leave me with not much change from £200 before I could mess the job up first before getting it right. Wasting time and getting stressed in the mean time.
So sometimes, sometimes its better to go to the pros and spend your time elsewhere.