Eileen, you've probably seen me say this before, but if you really want something done, you can't just wait to "find time" to do it, you have to "MAKE" the time.
You need to schedule time for it, just like any other important appointment.
Write it on your calendar. Designate a time slot. Gently say "no" to other requests that interfere with that time slot by just saying you have a previous commitment.
If this is important to you, it's worth the time it will take to get it done. See it on your calendar and look forward to getting to work on it!
Even if it is just 15 minutes each morning before your normal day starts it will give you 5 hours of sewing a month even if you take off on the week-ends!
Work a couple of hours every Tuesday (?) night? You will put in 8 hours a month.
Can you work all day every other Saturday? 16 hours a month. Just do what you can.
YOU CAN DO THIS!