I felt a bit like that after I finally managed to watch the end of The Godfather. I’d given up halfway through SO many times.
It's taken me 35 years and five ZX Spectrums to complete The Hobbit. Feels like a bigger deal than buying my house or having my family. I kept this quest secret for so long, I can only mention it here. Now I'm finally in a comfy tunnel-like hall, feeling like I've won at life.