@davidixoye
At the amounts you are considering why wait until 65 when you could spend less and live more halfway through? You may want to look into the FIRE movement: /r/FinancialIndependence.
Also don't forget a few things:
- past performance is not a guarantee of future returns, or as /@sunset27-Range47 says "will and can are two different verbs."
- inflation will eat your purchasing power so $9M today may only be worth half that in 45 years
It's important to stay ahead of inflation with your investments, but there's no guarantee your investments will make it.
Because of this it is often advised to invest passively in broad index funds. The epitome of this is the Boglehead movement, named after John Bogle who invented the index fund and founded Vanguard. (which incidentally has a unique management structure where the fund managers work for the individual investors rather than a for-profit board)
Under the Boglehead philosophy you don't even invest in "tech mutual funds" or "health mutual funds" – you invest in the entire market for an entire nation, region, or even the entire world. This ensures you aren't chasing the next winner because
winners rotate so by investing in a broad sense you are betting on the entire
nation or
world to continue to grow economically. It produces more modest growth, more in line with your projections, instead of 25% for two years then negative 50% for two years etc like some other funds.
You can discuss at /r/Bogleheads but I strongly recommend also spending time on the official Bogleheads forum and wiki at bogleheads.org as it has FAR deeper discussions and much more information available.
If you want to build a business you would be well advised to get a broad foundation within the trade first and always pay attention to the business leaders you work for to learn what works well and what doesn't. Your investments can become collateral for business loans, so that can give you leverage when starting your business, but keep in mind many business fail within the first few years and the bank can call your loans at any time meaning you can be forced to sell some or all of your investments to cover the loans. Business is a risky business so you need to learn to identify and manage risk. And since you will be in a business for profit you need to quantify risk in financial terms. It would be a good idea to talk to a financial advisor who understands business risk to help you tune your thinking for that.
Consider reading books like the E-Myth that describe the difference between "owning a business" that is just you having a job by yourself and "owning a business" that involves you
growing the business by adding employees. Doing the latter takes a lot more work early on but you have to work
on your business (growing and expanding it) at least as much if not more than you work
in your business.
I recall a Dave Ramsey episode many years ago (back when I used to listen to him) where someone was asking about buying an electrical business and he asked some pointed questions about the number of employees, number of clients, growth expectations, etc. It turned out it was a sole proprietor. His response was (paraphrased) "They aren't trying to sell you a business, they are trying to sell you a
job because they are tired of doing it."
There's a
huge difference between the two. Understand the difference and decide if you want to work in a job as a sole proprietor (which is totally fine) or if you want to
build a business. Two different skillsets are required. You can be the best tradesman and suck at managing, accounting, HR, taxes, payroll, leadership, marketing, etc. Or vice-versa. Only you can decide.
Good luck!