It’s impossible. One cannot become happy; one can only be happy.
Setting goals and milestones for ourselves is great, and we should do it often, but if we think in terms of conditional happiness, we will never get there.
Conditional happiness = “I’ll be happy when…”
We often find that the joy of achievement lasts only a short time until we crave something new entirely. It’s incredible if someone hits their goal of having $100,000 in their bank account; but once the high of hitting that goal fades, they will then want $200,000, and so on…
Decide to be happy now; then pursue.