Hi and welcome!
If you are doing SW then you will be eating a lot fat diet anyway so there will be little benefit from taking the pills as well. So I would just save your money - or put it aside for non-food reward as you lose weight.
Don't worry about your numbers - we are the same height and I was a bit heavier than you when I started, but 11 months later I had lost 7 stone so focus on your goals instead.
Good luck!