while I know what you were going through to reach this decision, don't fret about it. Job safety is mostly an illusion. The bottom line is, you simply put your life and financial security in the hands of your employer.
But economy constantly changes, and companies that do well today may be gone next year, and working at that company, while appearing to be "the safe bet" for that year longer, basically leaves you stranded.
If you have the opportunity to take responsibility for your own financial backing, then go for it without hesitation. Be your own boss, and look to find a second or third pillar of income over time, so if one breaks away, you can still survive on the others. You usually don't have even the option to start with that when you are in a regular employment.
Build, thrive, and expand. And don't forget to enjoy life along the way.