Looking good, I think you will be over the hump by this time next year (or perhaps the spring after that), at which point you'll be able to at least contemplate (if not necessarily proceed with) root/soil/pot actions, since this is still not a ton of needle mass dealing with quite a huge volume of what looks to be mostly organic soil.
I think the goal this year should be to grow as much needle mass as possible and, in parallel to that, try to get the soil to dry out as fast as possible in a continuous cycle of watering, then observing significant drying again (dig down with your fingers to investigate), repeat. If this were my tree, I'd additionally perforate the pot to get more air flow into the root system. This is really all there is to do this year. I urge you to run away from any advice that calls for pruning, pinching or wiring anything. Save up sugar for the big soil change that looms large in the more distant future. Keep it in full sun, El Nino is on the way and it's at least possible the PNW will have a long warm growing season and a mild warmer winter next year, which could help this tree.
