I came across this article today and remembered your question. Maybe of interest: https://www.womenshealthmag.com/fitness/a28641741/cardio-before-after-weights/

HI Darryl it is a good idea to do cardio after a weight training workout. If you do cardio first it uses up much of the energy for your strength training and can fatigue the muscles before your most strenuous activity.

You're absolutely not a beginner :) ... but maybe answers to your questions might be found in the following two Grokker programs - Good luck! :)
Ben Zorn 21-Day LIT Challenge https://grokker.com/fitness/low-impact/program/21-day-lit-challenge/5c51eee47455652fa4acb24b
Sarah Kusch Weight Management Jumpstart https://grokker.com/fitness/strength-training/program/weight-management-jumpstart/59276fcb3c53ad5663f899f2