A Budgies typically lives 5-10 years. Most of what determines whether it gets there is routine care rather than anything dramatic.
Balancing affectionate against energetic
Breeds described as both affectionate and energetic need the two managed together rather than separately. With a small bird that usually means a predictable routine first and training second - the routine is what makes the training stick.
The annual check
Once a year for an adult bird, and book it before the hot months rather than during them.
Keep the records
Booster schedules run from the original dates, and a new vet asks for the history first.
Air and environment
Fumes from non-stick cookware, incense, aerosols and smoke are genuinely dangerous to birds.
A breed from India, living in India
The Budgies was developed in India. The part that travels badly is rarely temperament - it is the coat and the tolerance for heat. Plan the year around that and most of the rest follows.
Planning for about 7 years
A Budgies is with you for about 7 years. Budget and routine both need to survive that, including the last quarter of it when a small bird needs more veterinary attention than it did young.
Find an avian vet before you need one
Many small-animal clinics do not treat birds at all. Establish who does, in your city, in the first fortnight.