There are, sadly, far too many people and companies out there more than willing to take advantage of people. Fortunately, awareness is usually a good defense. What are some scams that we should all know about so that we don't fall for them?

I hope this is the right place to post my question.
About me: I am 23, currently studying computer science in a university and failing it hard. I have finished school with pretty good grades, found school easy and didn't really put any effort into learning. After getting my fancy sheet of paper with my grades I applied to compsci studies. Fast forward to now, I am in my last semester with only 30% of credits I need to graduate. It is really hard, I have zero friends to work with at unversity, I make plans and detailed lists of work I have to do but always fail to follow them. I feel like I cannot control myself, one week I will do my work, next week I will struggle to get out of bed and do anything, I can spend whole day laying in bed and doing nothing. My personal life did not progress upwards too, I do not feel any joy in reading, communicating with people or doing basically anything. Everything feels like one big boring game of get a degree, work, make kids and die. My parents are disappointed, since I am failing uni, got fat and basically became a complete opposite of who I was at school. If I dont have anything to do I will just sit at home and stare at my computer, I dont even play games or watch movies, just mindlesly browse reddit or some forum without posting or commenting.

Maybe someone out here has faced a similar situation and give me a hint/tip to start with, I feel hopeless and useless. This situation seems like an endless void to me, maybe there is a way out that I cannot see?

Have any of you done these degrees? I'm switching disciplines for my MA, and I want to collect information on this alternative method should I fail that this summer. I'd have a more complete grasp of the field and proceed to a PhD equipped with better knowledge. The price to pay being some time, but I'll probably already have to do my MA---if I manage---in three years b/c the school might want me to take an extra preparatory year going through some undergrad classes.

So, any experiences, any comments, any links highly appreciated!

P.S.: EU information appreciated, that's been significantly harder to get at.