Finance degree to cs?
So I studied finance  and have a little bit of work experience in marketing, which are not related to cs at all.

I've been through a lot ups and downs (mainly just downs, really) and I've set my mind to change my life for the better. I'm not going to elaborate on whatever happened as it is off the topic.

I am just wondering how hard it is for smn with no experience to learn CS? I know many agencies are selling classes, and opinions from my friends are divided. Some said it is my best chance to get the life I want, which I agree; some said that it is too hard and it's not worth the effort as I'll have to go back and do a bachelor degree.

Any advice?