The good news is that you have identified this as an issue instead of struggling along. How comfortable are you with technology – if you are ok, then check out http://www.tradifyhq.com – a kiwi company doing great things to help tradies. I am sure they have a good support process to help you get started, but using technology to sort processes is one of my favourite things to do, so would be happy to pick this up with you – give me a call 027 224 9763.