How would you handle this sticky situation in 1st year uni?

Hello all. I have lurked here often but until now haven’t had too much reason to post.

Well for a bunch of different reasons, I failed two courses and I am 99% sure that I will get into probation once the semester ends. On top of that, without those two courses it will take me 5 years to graduate. I am feeling pretty down right now, so i played a wild card and enrolled in summer class. Problem is, its costing me $4000 and I haven’t told my parents. I plan to pay for it with the eating + recreation money they give me [about 750 a month].

From everyone i talked to they think its a risky idea because summer classes are even harder [a 4 month course becomes 3 months]. And if you fail stuff two semesters in a row, the Uni suspends you for 1 year. But that will cost my parents another $20000 for the last year. All in all I just feel like i have messed up bad and my parents are having to pay for it either way. What would you do in my situation?