Hi - I'm doing the same course but part-time and I've been doing treatments on clients since we started out first unit. Couple of things to consider:
1) Insurance - you will need to purchase this before you carry out any treatments outside of college. You can either go for student or full insurance - there are loads of providers so have a look but I will explain why I decided to go with full membership.
With full insurance I provide 'case studies' -these are my level 2 units. I can only provide treatments I'm been trained in and practice them as I've been taught and I must charge less than the industry standard price. This full insurance also allows me to train in enrichment courses i.e. spray tanning, threading etc and charge full industry prices.
2) I have my own client consultation cards and patch test etc. as my insurance company instruct.
I love doing these treatments and it has really helped my learning at college. However, you need to be aware that you will not make money during this period as there is SO much 'stuff' to buy. With each new unit there is so much more equipment to get. I get paid for my treatment and plough it straight back into products but I don't care - the practice really gets you through the assessments.
Good luck