I'm a non-trad with two small children. I work approx. 50 hours/week. I went back to school with about 60 credits earned in my youth. I completed 68 more credits in the last year and a half with a 3.8 or so. I am lucky enough to have a good, supportive spouse which has made a virtually impossible schedule possible. I thought I'd share some of what I experienced/learned:
make a point of going to see your instructor early and often in the semester for help even if you don't really need it, it shows your putting forth a proactive effort and many times they are forthcoming with what information/work in the class is most important/will be tested.
make ridiculously efficient use of your time. i read notes and did work every lunch break/before work/after work,taped lectures that I could listen to while driving etc. I enjoy my family immensely and time with my two daughters is very dear to me. The demanding schedule will infringe somewhat on family time. The only way I could fight back was to use every unproductive spare moment of my work day to work on school. Time with my daughters energizes, refreshes and inspires me, it helps me push through and persevere.
See if your school (undergrad), another school that will transfer, has 'winter term courses'. I found these courses available in the SUNY NY network of schools and was able to knock out an entire semester of 'fluff' courses in about 3 weeks.
Just thought I'd pass along some thoughts from my journey for better or worse. I have not yet decided if I will or will not continue on to law school. I've decided to spend the next 6-8 months passing the CPA exam and doing my best to ace the LSAT. The time and financial commitment necessary for law school is soooooo daunting....
Best wishes and goodluck