What a stupid way to see life. Going for the best paid job, which is the only reason you took it?
No offence, but if I was your employer, in the interview I said "Right, I see you have some qualifications, that's all good. Why start in this line of work?" "Ummm, money really"... I would show you the door.
Working in a job you have no interest in adds such a depressing outlook on life, you hate working, hate what you are doing and eventually bring that back home with you.
I would strongly suggest you speak to a careers advisor, have an interview and see what they suggest! It is their job, they get paid to do it so they must be better than you at deciding!
I never in a million years thought I would work in IT (generalising it) when at school, never took it for a GCSE, nor at college. When I came out of college (dropped out due to not liking what I was doing) I thought long and hard about what I wanted to do, mate suggested IT, I had a look around...
Next thing I know, it's my career and I love it to bits. Took some hard work getting to where I am due to no qualifications, but I got here safe and sound
ags