Welcome Anserem,
Prepare by getting a medical examination for a "CAT 1". Once you have passed that you know that you will be medically qualified to be a pilot. With the knowledge of your health, demonstrate [to yourself] appreciating your good health by not smoking, doing drugs and drinking, treat your body like you appreciate it!. No drinking! you hear me say! Well, I never drank, and in addition to better health, always being ready to fly, and not becoming an alcoholic, I saved a lot of money, which I put toward flying. In high school I saw my buddies spending on booze every week, about what I spent going flying. (Maybe a bigger differential now).
Go and take a trial lesson at a flying lesson at a local flying school. Go prepared with lots of questions. Ask and discuss lots before you go, so you're not wasting valuable time in the air discussing things with the instructor, which you could have discussed on the ground before takeoff. Ask lots of questions after you land. If it helps, during the flight, say to the instructor that you'd like to discuss more about xyz after you land, let the instructor retain some of your questions so your mind does not overflow in flight!
Avoid computer flight simulators. Though they may allow you to learn some things, equally likely you learn the wrong things and have to unlearn them later - that takes time, and costs money. Instead, read. Read ground school books (The Ground Up), read different pilot operating handbooks/flight manuals (easily found for free on the internet), read them very closely, and understand, those books are the final word as to how to fly that type of plane. Then, you'll form "why" questions. The Ground Up will answer some, we can answer some here, and the instructor you fly with can answer many. PPRuNe is an excellent resource, both with searches, and simply asking questions.
There will certainly be a need for pilots in the generation to come, so job security should be reasonably possible.
If you can go to a smaller airfield (less "airport" security) hand around, get to know people, talk to owners about their airplanes (they love to talk about them). Be charming and agreeable. Offer to help wash dirty airplanes, you might get invited to go flying, a very good way to learn, particularly about airplane types you may not encounter in training. If there is an airport restaurant, plan to spend hours, take a book and read there, chat with people if you can.
Then, approach flight training as if your life depends upon getting it right - it does! It is not something you think about for a few minutes a day, it consumes you. You can't pick up your phone because studying airplanes interests you too much! if you can never get enough airplanes, you can be a good pilot, and people you would like to work for will hire you. I have worked in aviation for 50 years, as a pilot, test pilot, and other interesting capacities. I have never, in my life applied for a job, nor submitted a job application - ever. I have just said "yes" when an interesting opportunity was presented to me. Be clean and neat, though dressed to work - look like the person who you would like to work for looks. Be the person and pilot who is where the airplanes are, not looking at your phone, and always ready to do something for someone.
If you can do those things and be happy doing them, you really want to do this!