I don't know which to choose?

Hi. I've been reading on this site ALL day and there is SO much information! But what I really want to know is opinions on which career I should choose- sonography or nursing?

Here's my situation- I'm a junior at a 4 year college majoring in biology- but I still have 2 years to go. Unfortunately, I just can't afford it anymore. I'm already up to debt to my eyeballs. I used to want to be a doctor, but had a change of heart. The schooling is really putting me off. I was looking into teaching and being a nutritionist- but that would still be 2 years plus 2 more years of grad school for jobs that are not very high in demand. I'm already $60,000 in debt plus interest.

I'm transferring to a local technical school because I can afford it. As either an RN or an ultrasound tech, I would be making a little more money after graduating than I would after the masters degrees I was thinking of! I thought of nursing because there's such an opportunity for growth, but the more I read the more unappealing some of it sounds to me. I am very caring and I love to help people. Blood does not bother me either, but I don't think I can deal with the stress, the long hours, etc. Part of me wants to go into nursing still but I am undecided. I've been researching sonography today and it sounds SO interesting. I especially am interested in being a cardia echo tech but I am unsure of how to get there.

Honestly, I just want an opinion from you guys? You all seem so knowledgable and I'm so completely confused. My aunt has been a nurse in labor and delivery for 20 years and loves it, but I know that I may not get a job in an area like that and be stuck somewhere I might not be happy. I'm just really worried. Also, my local tech only lets 15 people into the sonography program. I am SO worried I won't get in! I'm so confused! Any help would be GREATLY appreciated! Thank you!

Oh, also. You all have more experience with this which is why I'm asking so many questions- but my mom has me so worried about making money. She told me that I will only be able to live at home because of my debt and I'll never be able to move out and have my own home. She's also worried that these salaries won't be high enough- but my thinking is that if I can make a few more thousand a year, and have LESS debt, that I'm coming out on top. (2 years at tech is equivalent in cost to a semester at my current school!) Opinions on this matter? I'm so stressed over this! THANK YOU, THANK YOU, THANK YOU SO MUCH!