Catherine–
Great to hear you are identifying what needs attention and how to most effectively hit that area!
Yes, sometimes you will find an area that is tight that you may not have known about or as one thing is in proper placement something new arises. Keep working with it and chipping away at the tight traps.
Looking upstream and downstream of the impacted area is key for this reason.
It will take a little time for your body to hold the new positioning. It’s like learning a new skill or making a technique change. Unlearning old habits and making the new neuropathways for the new movement pattern/positioning. It will becoming just what you do it can take a little time, but stick with it as you have with the other things you were doing to address the situation.