You must have a sound mind and be in the right “state” of mind to be successful. I believe that is only possible if you have the mind of Christ and “surrender every thought captive to Him”. Next, you have to have a servants heart, your job is to Save the Day, homes have problems and your job is to fix those problems, but more importantly fix the customer by putting them at ease and reassuring them that you will take care of their home. Finally, you get to reap the reward that comes from a “Job Well Done”, there is no greater feeling than a good honest days work improving the lives of others by improving their home.
All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be complete, equipped for every good work (2 Timothy 3:16-17, ESV).