Hi there,
Congrats on achieving a 2:1. You absolutely can get an apprenticeship with this class - in fact most only require 2:1 or even 2:2 and above so you will not be at a disadvantage.
I would recommend going to any CV and interview help if this is offered by your university. The internships you get will choose you based on what they believe you can offer and what you are like as a student. Bulk out your CV with any projects you've been a part of, any labs you have attended, extra-curriculars etc. Keep it mostly related to where you are applying with a separate smaller section for other things that promote your soft skills.
Good luck with applying,
Sophie (uni of Bath)