I'm assuming 70% GPM since you are on the tools?
I would make yourself a budget at the start of the year and see how you feel about it. Put in the revenue you think you will do, get yourself off the tools 100% so your gross margin will come down. You will be a fixed expense. See how it all washes out. What does your net profit look like at the end? You can move things around if you like.
A business coach could help you with this as well. Ideally you'll see 10-20% net profit, 3% spent on marketing, 15% on management, 50% gross margin. Something along these lines but numbers that you like.
The new Jobber bookkeeping features will be great for this going forward.
Good luck!