Hi,
you are listing 5 occupations that are very different from each other - both in qualification pathway as well as work area. And it is a little difficult to understand, i.e. how can someone that wants to be a PT or OT possibly be interested in being a Laboratory Technician???

May I suggest that you read up a bit more about the proofessions and then do work experience internship or similar in the professional areas. That may help you making a decision.

Follow your heart.

Cheers,
Fyzzio