PA-28 instrument rated pilot reported a loss of aircraft control when entering clouds on an IFR flight during cruise in icing conditions. The pilot exited the clouds and regained control of the aircraft then continued the flight to the destination.

Narrative

Yesterday's weather presented challenging conditions even with 10 miles of visibility and clouds ranging from 5000 to 6000 feet at times. I was on IFR flight plan from ZZZ to ZZZ1; ZZZ2; then to ZZZZZ before heading to ZZZ3. As I ascended to 9000 feet; I encountered icing issues; making it difficult to maintain my assigned altitude. I deviated by 200-300 feet to navigate around clouds.Approaching the mountains before; I encountered thick clouds; prompting ATC to request that I stay at 9000 feet. Upon entering the clouds; I realized my aircraft was in an unusual attitude; with a 40-degree deviation in both attitude and airspeed nearing the yellow zone. My heading was also off by 40 degrees (180 vs. 130). Despite ATC's instructions to turn; I communicated my struggle to maintain control of the plane. I regained visual contact within 30 seconds; and the controller directed me to maintain the current heading.Concerned about my disorientation and staying on course; I eventually corrected my heading back to ZZZZZ before the VOR. Worried about fuel; I descended earlier than planned. Reflecting on this experience; I am disappointed in my performance and ability to handle flying through actual IMC. Recognizing the need for improvement; I have scheduled additional actual IFR practice with my instructor next week to enhance my skills and confidence in challenging conditions.