Looking for ankle mobility drills post surgery

I tore all 3 branches of my deltoid ligament and had ankle reconstructive surgery in Nov. I took PT serious and my surgeon released me without any limitations this week. I have ROM limitation (dorsal flexion) and while I can squat, the limited mobility causes an imbalance in weight to my other leg. Doc says to continue to grind and mobility will come back over the next few months. Has anyone gone thru a similar injury? If so, what mobility drills did you utilize?