Lisa,
Don't worry. I was 25 when I came to the USA. Learned some English and by 30, after getting HS diploma, I got accepted into a community college and then transfer to UCLA. Finished within 4 years and good grades to my hubby disbelief.
Now at 47, I recently graduated from a masters program. You'll ace it because you have endurance. I will recommend Khan Academy (
http://www.khanacademy.org/). It's free and has video tutorials.
I'm not trying to rain in your parade, just want you to know you are even more capable of getting your college degree. Congratulations again!!!