From what I’ve read and heard, recovery isn’t instant. Initial recovery takes about 2–4 weeks, where you gradually shift from liquids to solid food.
Full recovery and lifestyle adjustment can take 2–3 months.
The bigger challenge is long-term habits: diet control and regular checkups. You really need to adapt to the lifestyle and specific diet for your recovery. This will make you feel recovery normal, and not forced.
Surgery is only part of the solution; lifestyle change is crucial.