I would agree with anchorhold, if you have a good day job then keep instructing to weekends, you will enjoy it a lot more.
I run my own club, can only afford to pay myself minimum wage. Worst paid job i have ever had. Our prices need to go up, but the number of new customers out there is going down. Clubs round here pay £5 attendance and £20 hour. Local ame class two's £270 and £330 class one, madness.