Should I drop out til and work until Uni in Sept? Or complete course?

I am 18 years old in A2. My situation is: I was rejected on all courses I applied for at Uni (lack of experience in the profession). One Uni has offered me a related degree unconditionally.

Complete 1 A level

• Not dependent on entering the related course
• My mum wants me to complete at least 1 of the 3 I'm taking
• • Psychology course relates to Mental Health degree (unconditional offer)
• • Haven't attended since December so I have last years content & this years content to catch up on. Exams in May
• • stress made me depressed
• • Gain 1 Lv 3 qualification
• • Uni qualification would trump this one (Lv 4)

Work until University starts

• Drops all stress related to college
• Earn money rather than sit around doing nothing like I have for past few months
• I can volunteer too to get additional experience
• Life would feel more organised.
• • would just have 3 AS quals from 2 years of college

Essentially if I do this Mental Health degree it will tick the 3 things I lack right now to get the apprenticeship/degree I desire. Only issue is the commute so I'm looking for a closer course but I have a 100% garauntee to be accepted on offered. I changed the question half way through writing as I realised taking the related course is the best option for me only other way to get quals is if I pay privately (£6k) / get an apprenticeship (which I need Lv 4 qual + driving experience + care experience to get on to).

Anyone have any advice on what I should do? Is it beneficial for me to just focus on this a level rather than sorting my life out? Cheers in advance x