Hi there 👋 did you inform your manager about you leaving the company during your meeting? how did it go? If not, I'd recommend handing in a formal letter of notice to your manager, highlighting that you enjoyed your time with the company but that you are going to university. It's important to leave a good impression when you are leaving as they may be contacted as a reference if you decide to pursue a placement, and/or after you finish university and look for a graduate job.
Hope this helps.
Lauren
WrexhamUniReps