I did Marlow Half & the full Challenge Henley this year. First tri-events I'd ever done. All went fine.
I sort of followed Fink but I doubt there was any week where I didn't do more than the Fink plan said. I seem to have a base amount of swim, run and cycling that I do whatever and then I have a month of upping one thing. I'll have a swim month or two when I can do OW again, I do a lot of cycling anyway but some months I was deliberately upping it. Running I find hardest but I entered some half marathons and had to train for them. I'm doing a 10 mile race between Christmas and New Year so December is going to be a run month.
This worked for me and I guess I'll continue in this vein next year (which should be Grafman middle distance, full Outlaw and full Weymouth as long as all goes to plan)
(Edited because I'd forgotten how long the race I'm doing later this month was)