Something is always wrong

I don't know what my problem is but I feel like nothing ever turns out right. I am having a hard time lately and it probably has something to do with medication. I fucked up and missed all my appointments last month and I can't get anything together because I missed tuis month too. I keep getting up at like 2 or 3 in the afternoon and it's driving me crazy because I was doing so well and waking up at like 10 in the morning and I don't know how to get back where I was. I feel like a child because I want a video game and I can't afford it but I feel like throwing a fit. What the he'll is wrong with me? I wish I knew why I was like this. God why can't I grow up? I feel so ashamed.