Consistency is probably the most important aspect of training in order to have long-term gains. Pick a low or mid volume plan if that’s what you can complete on top of your fluctuating job demands and other life stress. As time allows, you can add in additional rides to increase the volume.
Also be open to changing volume part way through a plan. I’m in a similar situation, having moved recently and my commute time tripled. I struggled through the first part of SusPB and really think I need to drop my volume. There was a good discussion by Pete on podcast 291 where he had higher compliance with a mid volume plan (versus high volume) and got faster as a result.