I graduated HS in 2003 too!
I dropped out of college in 2005 and just free spirited my way through my 29s. I'm not a mommy, so hats off to you for making the leap back into school!
I went back to school in 2010 to finish my bachelors. Remember you might have the unique advantage of being older, mature and more experienced in the workforce than some of your cohorts. So now you just have to marry that with successful student habits in order to really make it.
Here's what I did:
1. My boyfriend was my study partner and overall support. He'd sometimes read my essays and quiz me for tests.
2. I didn't wait last minute for anything! I bought my books and started reviewing some of the topics that were mentioned on me syllabus.
3. I became well acquainted with my professors email and the schedule for writing and math tutors available on campus.
4. I scoped out who was successful in areas of study that I sucked in and tried to form a study group.
5. I brushed up on APA formats by using the Purdue Owl website and lots of YouTube.
6. I'd find time to pamper myself. I deserve it!
7. I studied at work. I studied on the train. I studied in between cooking dinner. Heck, whenever there was down time my eyes were in the textbooks or my notes.
8. My fun time with friends was greatly reduced but I did fit it in at least once a month.
9. I'd have my freak out moments about paying bills and being an adult... At which point I'd scream or workout.you need an outlet.
10. I kept and keep in mind that the effort I put in now will go towards something greater and bigger than me. I have to possess the faith and confidence to follow through.
Good luck to you! I'm sure you'll succeed!