I see this all the time with people who get excited about running their own business and so they throw what little they have down the drain.
* When I was in varsity a friend and I started a computer business, did the paperwork to register, got the business bank account etc etc and wound up with nothing. We did a few 10s of thousands in sales but the business and bank costs destroyed that over a matter of months. Stupid of us but lesson learned.
* A friend of my GFs started her business, hired a lawyer to draw up the contracts for her business and agreements for end users, paid for a website, paid for business registration. She's lost about R30k-R40k as the business didn't take off.
The lesson here is start the business from home, with little or no cash injection from yourself whatsoever. Get a few clients, average out the costs vs what the average you get paid is. See if you can get a somewhat steady income with constant income of work. When, and only when you can get to this point, should you entertain the idea of registering a business. When your business is making 100s of thousands each month, only then is it a good idea to possibly start looking at getting premises. You might never actually need premises in which case you can save yourself and the business a ton of cash that you can put towards that Ferrari you always wanted.
What you are going to do is wind up taking out a loan as no one would bankroll you as you have no signs, never mind a track record, of constant income of which is a high figure. Investors only invest in businesses that are already showing a healthy growing profit and need cash to take the business to the next level. Then you are going to throw away you loan cash on renting offices while possibly not making enough to cover the rent costs, never mind water, electricity, and other small overheads, or even paying yourself a salary.
Then you are going to spend many moons working a job you hate to pay back the loan you took out. Then you can give it another go in 5-10 years.
Businesses are mostly successful because they cut unnecessary costs to maximise profit. When your profit is ridiculous that you can afford all sorts of stuff comfortably then great, get the office, the ferrari, the boat, whatever. If your business does not comfortably make enough profit each month to cover these expenses then all you are doing is creating debt and screwing yourself over in the end.
Whether you like that truth or not makes no difference. If you can't manage the small challenges of your grandparents irritating you now you definitely do not have what it takes to run a business.