Defered year at university but applying to a level 3 course

I deferred my university place until December 2026 due to personal and medical reasons. Since then, I’ve realised that returning to university may not be the right path for me, although I haven’t made a final decision yet. I’ve been offered a place on a Level 3 course that runs part-time once a week, which is something I feel I can manage alongside my current circumstances. I start this course next week. However, I am still officially enrolled with the university, as I didn’t want to withdraw without having a concrete and realistic plan in place.
I wanted to confirm whether it is acceptable to remain enrolled at the university while beginning this part-time course.