Hello Jazzlynn, and welcome to CC!
My parents went through this with my Mom's parents. My folks moved half-way around the world. That ended the control.
I'm not recommending that; rather, if your in-laws are Christians (it sounds like they are), tell them directly (having discussed it privately with your husband) how you feel, and how their actions come across. Ask them to consider carefully whether their input has strings attached. If so, ask them what they hope to accomplish, and how that will benefit you as a couple in the long run.
Ultimately, this is a boundary issue, and if you don't deal with it well, it will keep dogging you. If you haven't read it, I strongly recommend "Boundaries" by Cloud and Townsend... with your husband. Pray with him about this also; you won't be able to deal with it effectively if you two aren't united.
May the Lord give you wisdom and grace for this!