Which should I choose, mechanical designer or photographer?

It's no problem to be a draftsman who used to be a lathe worker. College diploma is ok, mainly because he is willing to learn. This threshold is not high, but the initial salary is not high, but we will consider a development. With two or three years of experience, you can learn more by yourself and change the direction of mold design. With three to five years of mold design experience, you can do product design, all done in the office. It won't be difficult, just stay up late to buy time.

As for the photographer you mentioned, you can do it with money in your hand, but I think it's a little late to see your current state. Starting as an apprentice is a waste of time and the salary is not very good. Probably worse than a draftsman. The working environment must be running around or doing odd jobs in a photo studio, so you can't learn anything. If you have this hobby, of course you can choose, but you must consider it comprehensively. Simple photography is simple, but if you want to make some achievements.