Melski my love, I can only really comment on the one of these that I've done
1. Study law and become a solicitor - might be more exciting than a secretary
Like you I really enjoyed studying law, but working in it made my skin crawl. I've been a secretary and a solicitor, and I have to say that TBH, money aside, I would actually prefer to be a secretary (and I don't know about now but when I started most 1-2 year out lawyers were paid less than their secretaries). The main reasons being:
1. the timesheets - oh the torture of reducing your life to six minute increments!
2. the overtime - it's such a boys club and there is so much d*ck measuring about who stayed back the latest and who did the most billable hours - never about who did the best job for the client.
3. it's unbelievably sexist.... really it's a boys club and the more parochial the jurisdiction I'm guessing the more of a boys club it is.
4. the politics. the witch-hunts. It's oh-so-b*tchy. it makes a year 10 at a girls' school look like a teddy bears' picnic. And that's just the people you work with.
5. It's all about costs, costs, costs.
Anyway, that's just my experience. Personally I think if it was in an inhouse or possibly government role it could be OK (eg. police prosecutor, DPP etc), but private practice.... not for me. As for criminal I also have an interest in that, but I've never worked in it so maybe someone else can help you out there.
just my but it's a big investment of time and money to find that it was a great thing to study but not a great environment to work in.
Sorry to be a negative nancy but that's my take on it. Hope you can find something that lights your fire. I've been lucky enough to find a job that I'm really enjoying after ten years of being bored out of my skull so it can be done!