history: I recently noticed how much weight I gained over the past year and I just feel like I really let myself down. Over the past year_comma_ I gained a ton of weight and never realized until it was too late. I feel like I really let myself down. I always said I'd never let myself go.
current: Hey, It's never too late. Unless you can't exercise at all there is always a way to start. 
next: Yeah, I guess you're right. I need to stop pouting about it and get in the gym. I'm definitely going to have to keep an eye on my calories now.