Prioritize building habits; not setting goals.
If you build the habit of growing your newsletter; your goal of selling a painting this month is much more achievable.
If you build the habit of posting your artwork to social media everyday; your goal of reaching a bigger audience is much more achievable.
If you build the habit of writing newsletters; your goal of sending one out is much more achievable.
If you build a habit of staying in touch with collectors; your goal of having a repeat customer is much more achievable.