You already have QuickBooks. Use it! Sure, the templates are not really nice... but who cares. Do you want the money?? Or do you want to look nice??
Here is my simple suggestion. Get yourself a jump stick for a couple of bucks. (Now watch... because if you make a mistake... this could really mess you up... so don't do this while you're texting your wife and talking on the phone, ok?)
Put your current QB file on a jump drive. Use that as a back up. Then, try invoicing for a week. Look, the only expense (if you don't have a jump drive) is a couple of bucks, right? I am suggesting that because it will FORCE you to look on another drive and you will not get confused with the data files.
I came from a background of a full blown ACCPAC Accounting system. Then I moved into MYOB and did that ONLY because of the ability for it to allow me to invoice in different currencies (did business in 5 or 6 countries).
Now... I use QB. I will tell you that I didn't like it either. But here is the real nice thing... at Year End... I just toss my accountant the entire file. He does everything... and most of his work is ALREADY DONE... (yeah!) and the YE costs are cheaper.
At the push of a button, the reports are bang on. If you need help with all that, I am sure there is a QB for Dummies book (nothing personal... I use Dummies books all the time) that will walk you through things. I am thinking that if you make expenses into categories that work for YOU you will quickly be able to see if you're really making money... or if that cash in your pocket is already spoken for... if you know what I mean.
Good luck! I hope this helps. ... and quit trying to reinvent the wheel. The rounds ones work well!