You have to ask yourself why you want to start it. I’ll give you a brief description of my story; at about your age I got into building tiny model ships that other people collected like stamps. I was so good at it that people started to ask if they could buy them. So I learned how to build lots of copies at the same time as batches. I didn’t make much money but I felt like I had to do it because I was so interested in it and found it so rewarding to serve my customers. It taught me about organisation, shipping, budgeting and that kind of thing.

15 years later I have a much more evolved and sophisticated hobby product business, but the passion that drives it is more or less the same. You don’t have to be passionate about a certain thing, but you do have to be really interested in building a system that make or serves that thing for profit. It’s just easier to learn how to build that kind of system when you actually care about the product or service and find it very engaging.

With so little info in your post it’s hard to say whether you should. If you just don’t want a 9 to 5, learn a trade and become self employed, but that’s not quite the same as starting a business. That’s starting a job - which is also fine.

So tell us a bit more and maybe we can advise better.