Short answer: Yes. Automate on payday. Separate account. Removes temptation.
Yes. Automatic transfers remove the temptation to spend. Set it up on payday before you see the money. Even $100 per week becomes $5,200 per year. Use a separate account at a different bank if you lack willpower. The best deposit strategy is the one you do not have to think about.
Weekly Auto: $150
Annual Total: $7,800
After Three Years: $23,400
Plus Kiwi Saver: + $15,000 = $38,400 total