Hope all is well. Great question about fashion designing, and it is not a black and white answer. But to give you context on my opinion on this... I owned a founded clothing brand in 2004 named DVLP (which was in business for 7 years), founded a fashion design trade school (www.denverdesignincubator.com), and co-owned the global brand Ruckus (www.ruckusapparel.com) for three years.
Here are my thoughts!
- Pros: It usually starts with a deep creative passion, so pursuing that passion and dream can be one of the most fulfilling things in the world. It can be very rewarding. The process of turning an idea into a physical product that people can wear and look good in is awesome. You often get to be part of the entire process from concept to execution. Using your artistic talents for something that can be a great career. Empowering other people who wear your clothing to be the best version of themselves. You can often set your own hours.
- Cons: It is very hard to be successful as a fashion designer. The work itself can be very labor intensive. It often does not pay well. Some times your ideas are not well received. If you work for yourself it can be very inconsistent and you have to do everything yourself. If you work for someone else, then often times your creations get changed into something you do not like anymore.
At the end of the day, my advise is this -- If you have the passion, ideas, and talent to make something that people will want to wear and love, then go for it! But if you are considering it as a career just because it sounds cool, maybe consider other options.