I started an ISP in 1997 with a friend I met on a BBS. I told my mom about the business plan and started with used equipment and 10 telephone lines. I paid myself $4.50 an hour. Total startup was 10k. Half of which I borrowed from my mom and my partner did the other half. It changed my life. She explained to me (I was 18) about how much the money meant to her. How she had to dip into her retirement fund to do it and how she would pay penalties on the money. She gave it to me without hesitation though. Best decision of my life. Grew the ISP for 3 years and sold it for a hefty profit to a telephone company. I am and was truly blessed with a parent that believed in me. I hope you can find something similar.

Edit: when we sold we were up to over 400 telephone lines.