A respectable approach and one that I took myself! Like you, I became a home inspector for several reasons; to make myself a more knowledgeable investor, to fully immerse myself in real estate, and to network and meet others in real estate.
I see a few key differences however, as I did come into it full time, and am going at it solo, essentially building a business from zero, which is no easy feat. Also probably not recommended if you are already earning well with your W2, it may be counterintuitive.
As with starting any venture, inspection or otherwise, you should expect to make no money for the first 2 years. The road is full of ups and downs and countless unforeseen challenges, including building trust with your referrers (which takes considerable time and energy that you will not get paid for), and all of the other behind the scenes of building a business; websites, social medias, accounting, marketing, etc etc etc.
As @Hamp Lee III suggested, it may be wiser for you to join an existing company, but a major tradeoff there will be that you will likely sacrifice control over your time, as you'll be at the mercy of your new (or second) employer. But keep in mind a vast majority of inspectors are solo and there a number of reasons for this that are beyond the scope of this topic.
Also worth considering: how much familiarity to you already have with building systems? Will the coursework and exams be mostly review for you? Or will you be absorbing all of this content from scratch?
I had already flipped a few homes when I took the plunge, so a lot of the material was familiar to me already, and STILL learned a ton. It really is a lot of material, and the licensing exams aren't particularly easy. You will be expected to know a lot of material, and be able to apply the information with practical applications. I've copied the NHIE (National Home Inspector Exam) textbook table of contents below for your convenience. You should know this material front to back before taking the licensing test.
Volume 1 Contents; Mechanical Systems
Volume 2 Structural & Business
There are also 120 (minimum) hours of education required. As well as needing to perform actual inspections (aka parallel inspections) under the guidance of a licensed inspector before being granted a license. Here's the full requirements laid out in more detail: https://www.nachi.org/licensin...
If you are serious and determined, and make it through the education requirements, I would be open to helping you with the parallel inspections & peer review portion of the requirements.
All that said, I have found the experience to be extremely rewarding, both personally and professionally, and the satisfaction that comes from helping my clients understand their homes and navigate the defects discovered makes it all worthwhile (One of my inspections just saved a client $42K on their deal price!) Not to mention the fact that when I look at my own homes to purchase, I know exactly what to look for and this knowledge will be with me for a lifetime.