Good habits include organization, discipline and a strong work ethic. While it is possible to succeed without these attributes, having them makes the difficult task of painting easier.
I recommend cultivating good habits from the beginning by implementing a routine for getting paintings done.
Make sure you have some space that is setup as a studio, someplace where things will stay as they are when you aren’t working. Even if it is only a corner of a room, it is important to have a space that is dedicated to painting.
My space is organized and things are neat and clean when I’m not working.
I have staging areas for framing and packaging work when I ship to galleries or shows.
My office is separate from my painting space.
I can view my studio easel from my desk while I work on business or use the computers for research and writing.
When you work, have a plan. If you don’t feel like tackling a painting from beginning to end, practice some aspect like drawing or color mixing or value control. Make good use of your time to maximize your effort. Focus on one thing at a time and always go into the process with idea you will do the best you can. Just going through the motions is a waste of time and you will not be able to improve your ability one bit. Focused effort, consistency and routine will go a long way towards a positive outcome for what ever you decide to accomplish.