Any Chemistry degree that is RSC accredited will be academically challenging, it's a hard science. So you definitely need to be a more than slightly interested in the subject of Chemistry itself if you want to come out with a good degree. It's as demanding as Physics/Engineering in terms of workload (having spoken with people studying those). I know this as I've just finished the BSci (and going on to do the MSci), I was (and still am) very interested at GCSE/A level in atoms, molecules and materials.
Some very sound advice above, you will be working in a career for 50yrs (likely more), retirement is not guaranteed. Every career will have it's boring bits, it's the bits that interest you that will keep you coming into work at 9am every day. If you are just doing a career for the money, It's likely you could burn out or leave within 2 yrs. So you should first be honest with yourself as to where your interests lie, (a lot of careers are actually better and more interesting than they initially sound).
Careers outside of Chemistry that are open Chemistry graduates (BSci)
Teaching (All levels)
Grad Medicine
Paramedicine
Accounting Conversions
Environmental Jobs (I actually applied to one this summer).
Civil Service
Patenting
Non Chemistry basic lab jobs - (e.g In environmental/waste processing).
I think the BSci is very versatile if you can get experience with it (I have experience in teaching through volunteering for example). I have heard of others doing work experience in Medicine alongside their e.g Biomedical degree and then applying for Grad Med/other courses. On it's own, It's an academic degree that will encourage you (gently) in the direction of research unless you do something on the side. The Bachelors degree alone is not worth what it was 30/40yrs ago (due to 'degree saturation') and even in Physics/Engineering/Comp.Sci, I feel you definitely now need something else (be it experience, higher qualification) to stand out from the crowd.
The MSci or BSci + Yr in the Industry I feel leaves the door 'fully open' to the following (and the others mentioned);
Chemical Industry Jobs (Analytical is in particular demand)
Research
NHS STP
If you don't enjoy Chemistry, I would advice talking to a careers advisor (like the above) or one at your university to try something else. Have you considered Biological/Biomedical degrees? Have you considered not doing a degree at all and taking an apprenticeship or vocation (something I looked at briefly when I was at GCSE also)? University isn't for everyone, you could be more than smart enough but simply not enjoy studying.