(Please help if you have any advice to give me)

I'm a high school senior with 9 months of school left. I'm working hard and saving (I live with my parents, so life costs me nothing, and I spend on nothing. I don't party and only eat outside when I'm invited by friends and my parents and they insist on paying for me) so I can start investing in the real estate market in the next couple of years (renovating and flipping, building and selling, renting, etc) as it seems like a very lucrative opportunity I should take advantage of as early as possible. As I'm learning more about this business, I'm noticing that when building a residential or industrial building, much money can be saved if you have the qualifications to do certain tasks that you would normally pay someone (electrician, civil engineer, etc) to do.

Is it mandatory to have a professional engineer (P.Eng) to build a residential or industrial building where others will live?

If yes, are there any ways to become one without having done a 4 year university civil engineering program (by being self-educated, doing apprenticeships, trade school, etc.)? Is university the quickest way to become a P.Eng?

I'm not the guy who wastes a lot of time at home. I'm basically there to sleep and eat. On my free time, I read. I hate school. Either I know what I'm about to be taught, or its completely useless but to "get the diploma". I see it as an utter waste of time. Homework prevents me from spending time exploring what I like and learn more about business. I skip most school days to go to the library and read stuff that benefits and to feel that peace of mind from not doing stuff I'm just expected to do. I always come back realizing I missed nothing or require perhaps 10 minutes to learn what other students spent a week doing and repeating, and repeating, and repeating. The only reason I'm going there is to make my mom feel good as she doesn't realize that all my time (especially during youth) is more important than a master's or PhD. Guys, please tell me if I'm wrong.

If you guys tell me university or other post-secondary school is the quickest way to start investing in real estate, I'm willing to struggle through the rest of high school to get the diploma necessary to get into that program. Else, high school won't be my place anymore. I'd rather spend my time getting richer and smarter, not doing the exact opposite.