Janet,
First you have to decide if you want to finish the project. If so, then commit to it and set your mind at peace. Go back to your instruction book and find the last stopping point. Then study what is next. Look at your schedule and if say at x:00 o'clock on Tuesday you have 90 minutes lock that construction task in. DO IT. If you can keep up this sequence and are able to say to 3-4 hours per week then you will punch it out to completion over a couple of months. As you near the end you will become more excited when anticipating the finished project. You can also say to your self "this week I WILL install those push rods", etc .

Been there, doing that as we speak.