I started, and had a very successful retail business for thirty years and I just sold my business and retired two years ago (at age 55). Went I first was thinking of opening up a business, a friend of mine gave me a piece of indispensable advise that I will now pass on to you; ----here it is:
Figure out all your overhead expenses, insurances, accounting expenses, light heat & power, advertising, opening and start up expenses, permits, inventory expenses, displays, carpeting, decorations, etc. etc. and add that figure to what you need to live on a year. Add 10% to it because things always come up unexpectedly, and things you forgot to figure in. NOW TAKE THAT TOTAL FIGURE AND DOUBLE IT! That is the minimum you will need to start up. 90% of start-up businesses fail within the first year because they are under capitalized. Not my opinion, that is a fact.
I am not trying t be a downer or discourage you, I am being honest and blunt! If you don't have enough $$ up front, you will not have the "STAYING POWER" you will need to hang on until your business catches fire. No matter how good a businessman you are, you are not going to have lines out your door the first few months, and you need survival start up money.
Good luck and I hope you do well if you take the plunge!
chief38