Hi Alex,
I also do not like the traditional 9-5 work week. I started my own business and work from home now. Some important questions to ask when considering starting a business are:
- Where are your expertise/ What are you good at?
-What is there a need for? 
- What is your experience? 
- How can you find a niche and stand out in an industry.
I will use my own personal experience for an example.
- I am good at understanding businesses  and marketing. I also did an internship and have a bachelors degree in marketing.
- In my particular area, there is a need for small business marketing. They are big enough to want to invest into some additional marketing, but can not yet afford to hire and in house full time marketing employee. 
- Once I realized that there was a large group of businesses who wanted to do things like social media or SEO but could not hire a full time employee to do so, I found my niche. They are my target audience. I keep my prices lower than traditional marketing companies, I do not offer "cookie cutter" marketing (each company has a slightly different focus and way for reaching their target audience), I am cheaper than hiring a full time employee, and I present data evidence monthly of a companies growth. 
 
I hope this helps! 

This is a really good example of someone running into a innovation out of their own need. He shifted away from his domain of mastery, which was wallet making because he got injured. This lead him to the idea of creating this product. Kind of similar to what Napoleon Hill describes in his audio about think and grow rich.
I've been pondering more about product innovation and ideas. I figured if you were looking for some inspiration for a business or product, then this is a great video. I highly recommend the watching the whole thing, 
 

@BlurryBoi Great Question! First, please understand that the ancient Stoics were pioneeringly deterministic. The dichotomy of control is deterministic philosophy. What must be differentiated between is external and internal causation. Externals are seen as completely out of one's control, completely deterministic. Internals are seen as deterministic but less so because a human mind can be prepared in advance by disciplining it to a virtuous character with wisdom, reason, ethics, and courage that will enable high quality responses to adversity rather than inflamed emotional reactions. There may be the appearance of contol of mental impressions and they may even be spoken of conventionally as controllable relative to externals, and while more controllable than externals, internals are still ultimately determined... except....
...The most advanced teaching on this subject is that in paradoxically giving up all illusions of control the divine Logos can express itself through the highest Nature of a human to grant a contol of Mind so powerful that nothing can disturb its peace.
Happy Stoic studies my friend