There are few instant successes. If you can't apply yourself to business goals for days, weeks, and years, you'll be unlikely to succeed. Take a close look at your motivations. Separate the two issues. You can always find a job in an art-related field if it's the artistic environment you miss, rather than trying to do it on your own.
Some owners have trouble with the isolation, others with the distraction.
Some entrepreneurs are repelled by the idea of marketing and sales, others don't have a clue about how to handle the bookkeeping. No matter what weakness you bring to the picture, you can work to overcome it or work around it. A Planning Guide for Couples by Azriela Jaffe. To order click here. To order click here.