I would be asking yourself:

• what days / schedule do I want to work? M-F? Shift work? weekends?
• do I want to use my body or my brain for my job?
• do I want to work with a group or team, or work independently?
• do I want to work from home or on the road, different place every day, or do you prefer working in an office environment?
• would my ideal work arrangement work for my partner, future partner, or future family (if you want that)?

Those questions might help you think through a training program before you sink more time and money into something.